¿Por qué nos parece que los veranos no duran tanto como antes?

Source: The Conversation – (in Spanish) – By Fernando Díez Ruiz, Professor, Faculty of Education and Sport, Universidad de Deusto

Casi todos asociamos las vacaciones asociamos con la playa y el descanso. En la imagen, Palma de Mallorca. Andrés Nieto Porras. , CC BY-SA

¿Recuerda aquellos veranos de la infancia que parecían eternos? Días interminables jugando en la calle, disfrutando con los amigos, noches que se alargaban entre juegos y risas. Sin embargo, al crecer y hacernos más mayores, los periodos de vacaciones parece que no duran nada.

Como escribió Marcel Proust, “el tiempo, que cambia a las personas, no altera la imagen que de ellas guardamos”. Quizá lo mismo ocurre con los veranos: no es que hayan cambiado, sino que somos nosotros quienes los percibimos de otra manera.

Percepción subjetiva del tiempo

El tiempo es objetivo, marcado por el reloj y por el calendario. Pero su vivencia es profundamente subjetiva.

En Antes del amanecer (Linklater, 1995), una sola noche en Viena parece expandirse hasta convertirse en un universo completo de recuerdos. La película ilustra cómo la intensidad emocional y la novedad transforman unas horas en una experiencia vital extensa.

Imagen de la película Antes del amanecer, una metáfora de lo mucho que puede estirarse el tiempo.
Columbia Pictures.

Nuestro cerebro no percibe el paso de las horas de forma lineal, sino en función de la novedad, la atención y la memoria. Cuantas más experiencias nuevas vivimos, más información almacenamos y, en consecuencia, el tiempo se percibe como más largo.

Durante la infancia todo es descubrimiento: los amigos, los juegos, los lugares. Cada verano está repleto de “primeras veces”. El cerebro infantil está en un estado a aprendizaje continuo, saturado de estímulos que se procesan y registran. Esa abundancia de experiencias genera la impresión de que los días son extensos y variados.

Con los años, el cerebro se va habituando y tiene que atender a múltiples preocupaciones y decisiones. Ya no registra tanto detalle porque reconoce patrones conocidos. Al haber menos novedades, los recuerdos son más escasos, y lo que queda en la memoria es un resumen simplificado de semanas enteras. Así, al mirar atrás, sentimos que “el verano voló”.

Atención vs estrés

El modo en que gestionamos la atención también influye. Los adultos suelen vivir los veranos con prisas: planificar viajes, trabajar antes y después de las vacaciones para cubrir tareas, atender a la familia. Este fraccionamiento mental reduce la capacidad de disfrutar del presente. Cuando la atención se dispersa, el cerebro procesa menos detalles y los días se sienten más cortos. Es normal que un adulto, cuando comienza el verano, tarde entre 2 y 3 días antes de sentirse plenamente en modo descanso.

En cambio, los niños tienen la capacidad de sumergirse plenamente en una actividad. Una tarde en la piscina o un partido improvisado de fútbol en la plaza les absorbe de tal forma que cada momento queda grabado. La intensidad de esa vivencia amplia la sensación temporal.

Vacaciones con ojos de niño

La psicología cognitiva lleva décadas investigando este fenómeno. William James, considerado padre de la psicología moderna, ya señalaba en 1890 que la novedad es clave en la percepción del tiempo. Estudios recientes en neurociencia confirman que la dopamina (neurotransmisor asociado al aprendizaje y la recompensa) se libera más intensamente cuando enfrentamos experiencias nuevas. Esa descarga favorece la codificación de recuerdos y alarga la sensación temporal.

Un experimento interesante mostró que, cuando se pide a adultos y a niños estimar la duración de una misma actividad divertida, los pequeños tienden a decir que duró más. Esto sugiere que no solo la memoria posterior, sino también la vivencia inmediata, se percibe de manera distinta con la edad.

Los estudios evidencian que las vacaciones son necesarias tanto para los más pequeños como para los mayores. Esto se debe a que, cuando interrumpimos nuestras rutinas, abrimos espacios para nutrirnos de nuevos lugares, perspectivas, y damos pie a la creatividad. Así, el descanso y la desconexión contribuyen a mejorar el rendimiento cognitivo.

Cabe destacar que los descansos cortos lejos del hogar y el trabajo pueden ser más restauradores que unas vacaciones más largas.. Además, el contacto con la naturaleza, la realización de actividades locales o diferentes prácticas culturales ayudan a reforzar los vínculos familiares y sociales. De esta manera, cuando volvemos de vacaciones, solemos experimentar una sensación de bienestar que nos permite retomar el curso o el trabajo con más ganas.

Cómo vivir un eterno verano

Si los días de vacaciones se nos escapan de las manos, quizás podamos aprender de la infancia y buscar estrategias para “estirarlos”. O incluso, hacerlos “presentes” en los días laborables. No se trata de añadir más días al calendario, sino de enriquecerlos con ideas como:

  • Romper la rutina: probar actividades nuevas, visitar lugares desconocidos, aprender algo distinto. La novedad genera recuerdos y amplia la sensación de tiempo.

  • Vivir el presente: practicar la atención plena (mindfulness) ayuda a ralentizar la percepción del paso del día.

  • Reducir las prisas: organizar los días de descanso evitando agendas sobrecargadas. A veces, menos planes significa más disfrute.

  • Registrar experiencias agradables: escribir un diario o tomar fotografías cuando estamos de vacaciones –siempre y cuando no nos metamos en la rutina estresante de subirlas a las redes sociales– contribuye a reforzar la memoria, y al mirar atrás sentimos que el tiempo fue más largo.

Una mirada final

Los veranos no han cambiado de duración. Somos nosotros quienes los percibimos de forma distinta. La niñez los convierte en un mundo de descubrimientos, mientras que la mirada de adulto los reduce a un paréntesis breve en la rutina anual.

Quizás la clave esté en recuperar esa mirada infantil: abrirnos a lo inesperado, vivir con intensidad y permitir que cada día deje huella. Al fin y al cabo, lo que da longitud al tiempo no son los relojes, sino la riqueza de lo vivido.

The Conversation

Las personas firmantes no son asalariadas, ni consultoras, ni poseen acciones, ni reciben financiación de ninguna compañía u organización que pueda obtener beneficio de este artículo, y han declarado carecer de vínculos relevantes más allá del cargo académico citado anteriormente.

ref. ¿Por qué nos parece que los veranos no duran tanto como antes? – https://theconversation.com/por-que-nos-parece-que-los-veranos-no-duran-tanto-como-antes-265106

Cómo desarrollar una mirada crítica hacia la tecnología desde las aulas

Source: The Conversation – (in Spanish) – By Victoria Marín Juarros, Profesora Titular de Universidad en Ciencias de la Educación, Tecnología Educativa, Universitat de Lleida

M.Somchai/Shutterstock

La transformación digital en todos los ámbitos de la vida nos plantea múltiples preguntas sobre las relaciones entre tecnología y sociedad. En el ámbito de la educación, en concreto, nos vemos en la necesidad de preparar al alumnado para una ciudadanía digital activa. Queremos educar ciudadanos y ciudadanas capaces de usar la tecnología de una manera competente, adecuada y responsable en su vida diaria.

A este objetivo se le llama “competencia digital”, y se ha introducido en instituciones y centros educativos a través de las leyes educativas y los currículos. Por ejemplo, en el contexto de la educación obligatoria en España, la competencia digital es parte del actual currículo LOMLOE.

En el contexto universitario, la competencia digital es parte de algunos programas de estudios. Destaca especialmente en la formación de maestros como la competencia digital docente. Sin embargo, y a pesar de las definiciones manejadas del término, a menudo se enseña desde una visión instrumental y neutral de las tecnologías digitales. Es decir: enseñamos simplemente a usarlas.

Más allá de usarlas

Pero también es necesario el cómo, por qué y para qué se utilizan. Es decir, aprender a hacerlo de una manera ética y crítica, lo que implica además ciertos conocimientos y actitudes y no solo destrezas técnicas. Pasar de ser usuarios pasivos de estas tecnologías, y receptores de la información que nos llega a través de ellas, a seleccionar qué usamos, entender por qué y para qué, y desarrollar un sentido de la responsabilidad digital.




Leer más:
¿Dominan los adolescentes españoles las tecnologías?


Estos son algunos de los objetivos que tenemos en cuenta en una investigación en curso en la que proponemos estrategias concretas para preparar a los futuros profesionales a desarrollar esa mirada ética y crítica hacia la tecnología en la sociedad actual.

¿Cómo funcionan las tecnologías digitales e internet?

Entender la faceta material de la infraestructura que hay detrás del uso de las tecnologías digitales e internet sería uno de los pilares básicos para construir una competencia digital crítica.

Por ejemplo, dedicar tiempo de clase a entender qué son y cómo funcionan los cables submarinos de telecomunicaciones o el consumo energético y de agua que implica la inteligencia artificial generativa aporta una dimensión práctica imprescindible para entender todo lo que implica tener acceso a internet y herramientas digitales en la palma de la mano. Ser conscientes de este entramado ayuda a chicos y chicas a poner unas bases de un uso responsable y sostenible de las tecnologías digitales.

Prestar atención a las infraestructuras

Este nivel se podría trabajar a partir de la observación y registro de las infraestructuras tecnológicas (cables, centros de procesamiento de datos). Podemos pedir al alumnado que fotografíe elementos que forman parte de esta infraestructura, como torres de telefonía o antenas, en su entorno cotidiano.




Leer más:
¿Se puede limitar el uso de pantallas y alfabetizar digitalmente en las escuelas?


En una experiencia previa en el contexto norteamericano, tras leer y debatir sobre la infraestructura que necesitan nuestras tecnologías digitales, un grupo de estudiantes universitarios recorrieron durante 15 minutos su campus examinando las infraestructuras digitales que encontraban (cables de fibra óptica enterrados, servidores, cámaras de vigilancia) y tomando fotos de ellas con sus cámaras o móviles. Todas las fotos se revisaron en grupo y se discutió sobre ellas.

Las metáforas que rodean a las tecnologías

Otra manera de trabajar una comprensión más profunda y crítica de las tecnologías que usan en su día a día puede ser a través de la deconstrucción de metáforas, como la nube o los datos (digitales y personales) como el nuevo petróleo. En el aula se podría plantear la exploración del origen de estas metáforas o la creación artística de su interpretación personal por parte del alumnado.

El uso de metáforas suaviza y reduce la complejidad de las infraestructuras digitales, por lo que esta deconstrucción implica una investigación más profunda para sacar a la luz muchos detalles (quién hay detrás, cómo se mantiene) que a menudo quedan en segundo plano.

¿Qué tecnología uso y por qué?

En su papel de consumidor, los estudiantes deben entender que existen diferentes alternativas en el mercado tecnológico, y cómo con sus decisiones y compras privilegian unos servicios, programas y aplicaciones. A menudo priorizamos las herramientas más conocidas (Microsoft, Google…), aparentemente gratuitas (a cambio de datos personales) o semigratuitas y accesibles en línea.

En este sentido, otro aspecto que puede ayudar a trabajar la competencia digital crítica es la identificación de alternativas no comerciales, abiertas y libres como LibreOffice en vez de Microsoft Office, o GIMP en vez de Adobe Photoshop.

En clase se pueden realizar auditorías tecnoéticas de las herramientas según tipologías, que ayuden a contemplar aspectos de ética social, comercial, pedagógica y ambiental. Por ejemplo, el grado de accesibilidad e inclusividad de la herramienta (ética social) o la posibilidad de poder utilizarla sin conexión a internet (ética ambiental) son aspectos que pueden influir en las decisiones.

Explorar la faceta creativa

Jóvenes y adolescentes a menudo adoptan un papel pasivo ante las tecnologías, y es precisamente entender las posibilidades de participación y creación que ofrecen lo que les permite dar el salto a un uso más crítico.

Esta faceta se puede explorar con actividades como la edición y traducción de artículos a través de Wikipedia como plataforma colaborativa abierta y libre, la creación de nuevos contenidos (como páginas web) que puedan utilizar otras personas y el uso de licencias abiertas Creative Commons en esos contenidos para la promoción del conocimiento en abierto, compartido y reutilizable.




Leer más:
Jóvenes y adolescentes en redes sociales: ¿consumidores o creadores?


En todos estos casos, estamos haciendo un uso deliberado y significativo, cuyo resultado va más allá de la actividad en cuestión, pues puede servir a alumnado futuro u otras personas externas a la clase.

Desarrollando la alfabetización crítica en todas las etapas

Además de estos cuatro aspectos, nuestra colección de prácticas educativas desarrolla muchas otras propuestas: trabajar la alfabetización en datos vinculada a los sesgos de la inteligencia artificial; el fomento de la ciudadanía y responsabilidad digitales mediante la construcción de una huella digital ética; la evaluación crítica de contenido, o la producción mediática crítica a través de cartografías digitales para narrar cuentos, entre otras.

Si bien el proyecto se centra en educación superior, y en especial en la formación inicial de docentes de colegios e institutos, las propuestas se podrían adaptar a otros niveles educativos.

The Conversation

Esta publicación es parte del proyecto de I+D+i PID2022-136291OA-I00, financiado por MCIN/ AEI/10.13039/501100011033/ y “FEDER Una manera de hacer Europa”.
Victoria I. Marín reconoce el apoyo de la Ayuda RYC2019-028398-I financiada por MCIN/AEI/ 10.13039/501100011033 y FSE “El FSE invierte en tu futuro”.

ref. Cómo desarrollar una mirada crítica hacia la tecnología desde las aulas – https://theconversation.com/como-desarrollar-una-mirada-critica-hacia-la-tecnologia-desde-las-aulas-258941

Weight loss drug semaglutide shown to be safe and potentially more effective at higher dose – new findings

Source: The Conversation – UK – By Martin Whyte, Associate Professor of Metabolic Medicine, University of Surrey

These were the first trials to examine the effects of a 7.2mg dose of semaglutide on body weight. Caroline Ruda/ Shutterstock

A higher dose of the weight loss drug semaglutide (better known by its brand name Wegovy) may help people lose up to 25% of their body weight – without the risk of severe side-effects. These findings are based on the results of two recently published clinical trials.

Semaglutide has proven to be effective in helping people lose weight. But weight loss tends to plateau after about one year of use – even when taking the highest approved dose of the drug. This means patients may not reach their weight loss goals.

So researchers set out to understand whether a higher dose can be effective without the risk of severe side-effects.

In the first trial, researchers studied the effect of a 7.2mg dose of semaglutide in adults with obesity. This is three times the currently approved 2.4mg dose found in Wegovy. Participants were randomly assigned to either receive the higher dose, the standard dose or a placebo drug once a week for a period of 72 weeks.




Read more:
Semaglutide: beware of buying the weight-loss drug online


Participants were also told to reduce their daily calorie intake by around 500 calories per day and increase the amount of physical activity they did each week (aiming for around 150 minutes).

The participants who received the 7.2mg dose lost an average of nearly 21% of their body weight – compared with 17.5% for those on the standard dose. Participants who took the placebo only lost 2.4% of their body weight. These figures are based on those who fully adhered to the treatment regimen.

Around 33% of the participants on the higher dose also experienced very high levels of weight loss – losing 25% or more of their total body weight. This is roughly double the proportion seen in the standard-dose group, where just under 17% achieved this degree of weight loss.

The participants who used semaglutide also saw greater improvements in their cardiometabolic health compared to those who only received the placebo.

As might be anticipated, side-effects were more common in people taking the higher dose of semaglutide than those taking the lower dose. The most common side-effects were gastrointestinal issues, such as nausea or diarrhoea. Around 3% of participants using the higher dose and 2% of participants using the standard dose stopped using the drug because of these gastrointestinal issues.

A second trial then investigated what effect a higher dose of semaglutide would have in people with type 2 diabetes.

It’s well established that people with type 2 diabetes tend to lose less weight on semaglutide compared to those without diabetes. It’s not currently known why this is. So the second trial sought to understand whether a higher dose of semaglutide would also have a significant effect on weight loss in people with type 2 diabetes.

Two vials of semaglutide, with a blue measuring tape wrapped around them.
The higher dose of semaglutide also helped people with type 2 diabetes lose more weight.
Edugrafo/ Shutterstock

This time they recruited 512 participants with obesity who also had type 2 diabetes. They used the exact same study design as they did in the previous study.

Those treated with 7.2mg of semaglutide lost just over 13% of their body weight. The standard dose group lost around 10% of their body weight, while the placebo group lost just under 4% of their total body weight.

Beyond weight loss, the 7.2mg dose of semaglutide brought measurable improvements in metabolic health. On average, waist circumference decreased by 6.5cm compared to the placebo group. Blood glucose levels (HbA1c, a measure of diabetes control) also fell by nearly 2% in those taking the higher dose.

Gastroinstestinal problems were again the most commonly experienced side-effects in those taking semaglutide – with around 6% of the study’s participants stopping the trial because of these side-effects.

Patient benefit

Semaglutide promotes weight loss by mimicking the body’s natural GLP-1 hormone, which helps regulate blood sugar and appetite. These drugs act on brain pathways that control energy balance and food intake, leading to reduced hunger and an earlier sense of fullness (satiety) after eating. This can help people to eat less, leading to weight loss.




Read more:
Eight conditions weight-loss jabs might be beneficial for


Higher doses of semaglutide lead to greater weight loss by more strongly activating the brain regions that control appetite, resulting in reduced hunger and increased feelings of fullness. They also slow stomach emptying more effectively, helping to decrease overall food intake.

The results from these two trials show that a higher dose of semaglutide is both safe to use and very effective. Being able to use a higher dose of semaglutide offers more options for patients when it comes to managing their weight and controlling their blood sugar. It also gives an option to people who may not respond to the standard 2.4mg dose or whose weight loss may plateau.

These findings also show that semaglutide can compete against other weight loss drugs, such as tirzepatide (Mounjaro). In an earlier head-to-head trial, a 10gm-15mg dose of tirzepatide resulted in a 20% loss of body weight in participants – while a standard dose of semaglutide only resulted in an approximately 14% loss in body weight. But these recent studies now show that a higher dose of semaglutide can lead to comparable levels of weight loss.

These results may also raise questions about whether dose escalation may become a future standard of care in obesity treatment.

The Conversation

Martin Whyte does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Weight loss drug semaglutide shown to be safe and potentially more effective at higher dose – new findings – https://theconversation.com/weight-loss-drug-semaglutide-shown-to-be-safe-and-potentially-more-effective-at-higher-dose-new-findings-265312

Fed rate cut is attempt to prevent recession without sending prices soaring

Source: The Conversation – USA (2) – By Ryan Herzog, Associate Professor of Economics, Gonzaga University

The Fed’s job can seem like a balancing act. Dimitri Otis/DigitalVision via Getty Images

The Federal Reserve on Sept. 17, 2025, cut its target interest rate as it shifts focus from fighting inflation to supporting the choppy labor market.

As financial markets expected, the Fed lowered rates a quarter point to a range of 4% to 4.25%, its first cut since December 2024.

The Fed’s decision to begin cutting rates comes as evidence mounts that the U.S. labor market is losing momentum. The headline unemployment rate has stayed steady at near record lows, but the underlying trends are more concerning.

At the same time, the fight against inflation is not over yet. While a cooling jobs market could lead to a recession, cutting rates too much could drive inflation higher.

So if you’re the Fed, what do you do?

I’m an economist who tracks labor market data and monetary policy, examining how changes in hiring, wages and unemployment influence the Federal Reserve’s efforts to steer the economy. There’s an incredibly large amount of data the Fed, investors, economists like me and many others use to understand the state of the economy – and much of it often tells conflicting stories.

Here are some the data points I’ve been following most closely to better understand where the U.S. economy might go from here – and the tough choices the Fed has to make.

a bespectacled white man in a suit stands before a podium with a micrphone
Fed Chairman Jerome Powell speaks during a news conference after the rate-cut decision.
AP Photo/Jacquelyn Martin

Underlying trouble in the labor market

The labor market looks stable on the surface, but more granular data tells a different story.

The unemployment rate has remained close to historic lows at 4.3% as of August 2025, according to the U.S. Bureau of Labor Statistics.

But the number of long-term unemployed – people out of work for 27 weeks or longer – rose to 1.9 million in August, up 385,000 from a year earlier. These workers now make up 25.7% of all unemployed people, the highest share since February 2022. Persistent long-term joblessness often signals deeper cracks forming in the labor market.

At the same time, new claims for unemployment benefits are spiking. Initial claims for unemployment insurance – a leading indicator of labor market stress – jumped by 27,000 to 263,000 for the week ending Sept. 6, according to the U.S. Department of Labor. That’s the sharpest increase in months and well above economists’ forecasts. It suggests layoffs are becoming more common.

We also got news that past payroll growth was overstated. In a process the Bureau of Labor Statistics undertakes annually to double-check its data, the bureau recently revised its jobs data downward from April 2024 through March 2025 by 911,000. In other words, the economy created roughly 75,000 fewer jobs per month than previously reported. This implies the labor market was weaker than it appeared all along.

Finally, workers are losing confidence. The Federal Reserve Bank of New York reported in August that confidence in finding a job fell to its lowest level – 44.9% – since it started surveying consumers in June 2013. That’s another sign workers are feeling less secure about their prospects.

Taken together, these data points paint a clear picture: The labor market is not collapsing, but it is softening. That helps explain why the Fed is beginning to cut rates now – hoping to stimulate spending – before the job market breaks more sharply.

packages of bacon and other meat are on display in a grocery store
Prices of meat and other groceries have been on the rise recently.
Scott Olson/Getty Images

Tariffs are complicating the inflation data

Even as the labor market softens, tariffs are pushing certain prices higher than they otherwise would be, complicating the Federal Reserve’s effort to bring inflation down.

Government data shows that businesses have begun passing the costs of President Donald Trump’s new import tariffs to consumers. In August, clothing prices rose 0.5% and grocery prices rose 0.6%, with especially strong gains for tariff-sensitive items such as coffee.

Lower-income households are getting hit hardest because they spend more of their budget on imported goods, which tend to be the lower-cost items most affected by tariffs. A report from the Yale Budget Lab found that core goods prices are about 1.9% above pre-2025 trends as tariffs raise costs for basic items such as appliances and electronics.

Phillip Swagel, director of the Congressional Budget Office, said recently that Trump’s tariffs have pushed inflation higher than CBO analysts had expected, even as overall economic activity has weakened since January.

Typically, a slowdown in the labor market is met with slower inflation. But while the CBO now projects that the tariffs will reduce the federal budget deficit by about US$4 trillion over the next decade – roughly $3.3 trillion in new revenue and $700 billion in lower debt service costs – but it will come at the cost of near-term upward pressure on prices.

This creates a difficult balancing act for the Fed: Cut rates too quickly, and tariff-driven price pressures could reignite inflation; move too slowly, and the softening labor market could tip into recession.

a bespectacled white man in a vest look on as a tv screen shows news of fed rate cut behind him
Traders react to the Fed news.
AP Photo/Richard Drew

A narrow path to a soft landing

As it resumes cutting rates, the Federal Reserve is trying to thread a narrow needle – easing policy enough to keep the labor market from cracking while not reigniting inflation, which is proving stickier in part because of tariffs.

Markets are betting the Fed will keep cutting. The futures market is betting the Fed will cut rates by another half point by the end of the year. And the one-year Treasury yield has dropped about 150 basis points (1.5%) since June, signaling that investors expect a series of rate cuts through 2025 and into 2026.

At its latest meeting, the Fed signaled two more rate cuts in 2025 and at least one rate cut in 2026.

Such cuts would ultimately bring the federal funds rate closer to 3% and hopefully reduce 30-year mortgage rates to around 5% – from an average of 6.35% as of Sept. 11. If the labor market continues to weaken – with jobless claims climbing, payrolls revised down and more workers stuck in long-term unemployment – that expectation will likely harden into consensus.

But the path is far from certain. Cutting rates too quickly could cause inflation to spike, while going too slow could lead to further deterioration in the labor market. Either outcome would jeopardize the Fed’s credibility – whether by appearing unable to control prices or by allowing unemployment to rise unnecessarily. That would undermine its ability to influence markets and enforce its dual mandate of maximum employment and stable prices.

Another tricky issue is Trump’s public campaign to push the Fed to cut rates – appearing to do his bidding could also undercut Fed credibility. For what it’s worth, the Sept. 17 rate cut appears driven less by politics than by economic data. The Fed itself was projecting a year ago that rates would be much lower today than they actually are, suggesting it’s been following the data.

The economy appears to be slowing but remains resilient, which is why the Fed is likely to move gradually. The risk is that the window for a soft landing is closing. The coming months will determine whether the Fed can ease early enough to avoid recession, or whether it has already waited too long.

The Conversation

Ryan Herzog does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Fed rate cut is attempt to prevent recession without sending prices soaring – https://theconversation.com/fed-rate-cut-is-attempt-to-prevent-recession-without-sending-prices-soaring-265370

Vaccine death and side effects database relies on unverified reports – and Trump officials and right-wing media are applying it out of context

Source: The Conversation – USA (3) – By Matt Motta, Assistant Professor of Health Law, Policy and Management, Boston University

Government approval of COVID-19 vaccines determines their availability to populations vulnerable to infection, such as children. Spencer Platt/Getty Images

Trump officials intend to link 25 child deaths to COVID-19 vaccines, according to reporting from The Washington Post. These findings will reportedly be discussed during the Sept. 18-19, 2025, meeting of the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices, with implications for who may be eligible for COVID-19 vaccines in the future.

These death reports are reportedly derived from the Vaccine Adverse Event Reporting System, or VAERS, a database co-managed by the CDC and the Food and Drug Administration. It was originally established in 1990 to detect possible safety problems with vaccines. Unfortunately, the anti-vaccine movement has used this database to spread misinformation about the COVID-19 vaccine. Health and Human Services Secretary Robert F. Kennedy Jr., a prominent anti-vaccine activist, has promulgated this misinformation through the Make America Healthy Again movement in efforts to limit access to COVID-19 vaccines.

VAERS is ripe for exploitation because it relies on unverified self-reports of side effects. Anyone who received a vaccine can submit a report. And because this information is publicly available, misinterpretations of its data has been used to amplify COVID-19 misinformation through dubious social media channels and mass media, including one of the most popular shows on cable news.

We are political scientists who study the social, political and psychological underpinnings of vaccine hesitancy in the U.S. In our research, we argue that VAERS, despite its limitations, can teach us about more than just vaccine side effects – it can also offer powerful new insights into the origins of vaccine hesitancy in the U.S.

What the side effects database was designed to do

Medical experts at the Department of Health and Human Services are well aware of VAERS’ limitations. Rather than taking each individual report at face value, regulators remove clearly fraudulent reports. Demonstrating this, anesthesiologist and autism advocate James Laidler once used the system to report that a vaccine turned him into the “Incredible Hulk,” which was removed only after he agreed to have the data deleted.

Regulators also look for reporting patterns that can be corroborated by additional evidence. For example, reports of Guillain-Barré syndrome should be more common in people over 50 than in younger adults. This can help researchers identify potential adverse events that were not detected in clinical trials.

Because VAERS claims are self-reported, they tell us something about what ordinary people, as opposed to doctors and medical researchers, think about vaccine safety. In other words, people who feel that a vaccine is responsible for a side effect they might be experiencing can log that concern with the federal government, whether or not those claims would stand scrutiny in rigorous clinical testing.

Red breaking news banner behind two vials of COVID-19 vaccine.
Media stories on vaccine side effects can influence public sentiments toward vaccination.
MikeMareen/iStock via Getty Images Plus

Consequently, VAERS reports might not only document people’s negative experiences with vaccination but also their attitudes toward vaccination. People may be more likely to report side effects, for example, in response to media stories about vaccine safety concerns. If reports to VAERS increase following these stories, then the reporting system may be functioning similarly to a public opinion poll. It could reflect, in part, public attentiveness to and concern about potential side effects.

To see whether this is the case, we examined a well-known case of vaccine misinformation: the since-retracted paper that claimed a link between the measles-mumps-rubella vaccine (MMR) to childhood autism.

Is a fraudulent study responsible for MMR vaccine skepticism?

In 1998, former physician Andrew Wakefield and his colleagues published a since-retracted paper claiming that the MMR vaccine could cause autism in children. Although the study was rife with unreported conflicting interests and data manipulation, it nevertheless garnered significant media attention in the late 1990s. Some journalists and researchers have since argued that the paper played a major role in inspiring MMR vaccine hesitancy.

While this is plausible, there hasn’t been evidence to support the argument. Virtually no opinion polling about MMR existed prior to the publication of Wakefield’s paper. Consequently, researchers have not been able to directly observe whether the study influenced how Americans think about the MMR vaccine.

VAERS data, however, could offer some clues. In our study, we examined whether the number of VAERS reports following publication of Wakefield’s paper was significantly greater than expected based on typical report numbers prior to its publication. We found that the number of adverse event reports for MMR increased by about 70 reports per month following publication of the paper. This is significantly greater than what we would expect by chance based on previous reporting frequencies. Notably, we did not find a similar effect for other childhood vaccines in the same time period. This further underscores the power this since-debunked study has had in shaping public opinion about the MMR vaccine.

Importantly, we also found that adverse event reporting rates rose in tandem with negative media coverage of the MMR vaccine. Following the publication of Wakefield’s paper, television and print news published significantly more stories about MMR than before the paper was published. These results suggest that Wakefield’s article influenced how much more attentive Americans were about the MMR vaccine.

VAERS: A double-edged sword

Since the COVID-19 pandemic, interest in the side effects reporting system had significantly grown. Google search engine trends suggest that more Americans were looking up VAERS than ever before shortly after emergency use authorization of the first COVID-19 vaccines in the U.S. This trend continued to increase until a peak in August 2021.

This search behavior is likely a result of increased media attention to VAERS, particularly by right-leaning news outlets. According to the data from media research platform Media Cloud, there have been 459 stories in mainstream national news outlets, such as CNN or USA Today, mentioning VAERS between December 2020 and mid-August 2021. In right-wing media outlets such as Fox News, The Daily Caller and Breitbart, however, coverage soared to 3,254 stories – over seven times more than mainstream news media.

Consequently, VAERS data could be seen as something of a double-edged sword. On one hand, it has been weaponized by the anti-vaccine movement and political actors on the right to sow doubt and distrust about COVID-19 vaccinations. On the other hand, this data could also tell public health researchers something useful about how American vaccine skepticism might ebb and flow in response to events such as the brief pause in Johnson & Johnson COVID-19 vaccine administration or fluctuations in the tone of media coverage about COVID-19 vaccines.

VAERS data may even offer an important advantage over public opinion polls, which, with the exception of weekly vaccine uptake polls, have typically been administered much less frequently. Our research cautions that media attention to discredited vaccine-related claims may undermine public confidence in vaccination.

How to avoid another wave of misinformation

To ensure that VAERS is used properly, journalists and scientific researchers can team up to help the public interpret new findings. Journalists should, in our view, contextualize their coverage within a broader body of scientific evidence. Scientific researchers can aid in this by helping journalists accurately portray studies on vaccine side effects, clearly outlining their methodologies and results in accessible language.

By working together, researchers and journalists can take constructive action to address vaccine hesitancy before it has a chance to germinate.

This an updated version of an article originally published on Aug. 25, 2021.

The Conversation

Matt Motta has received funding from the National Science Foundation.

Dominik Stecuła receives funding from the National Science Foundation.

ref. Vaccine death and side effects database relies on unverified reports – and Trump officials and right-wing media are applying it out of context – https://theconversation.com/vaccine-death-and-side-effects-database-relies-on-unverified-reports-and-trump-officials-and-right-wing-media-are-applying-it-out-of-context-265362

Right-wing extremist violence is more frequent and more deadly than left-wing violence − what the data shows

Source: The Conversation – USA – By Art Jipson, Associate Professor of Sociology, University of Dayton

President Donald Trump is targeting left-wing organizations he incorrectly says promote political violence. Celal Gunes/Anadolu via Getty Images

After the Sept. 10, 2025, assassination of conservative political activist Charlie Kirk, President Donald Trump claimed that radical leftist groups foment political violence in the U.S., and “they should be put in jail.”

“The radical left causes tremendous violence,” he said, asserting that “they seem to do it in a bigger way” than groups on the right.

Top presidential adviser Stephen Miller also weighed in after Kirk’s killing, saying that left-wing political organizations constitute “a vast domestic terror movement.”

“We are going to use every resource we have … throughout this government to identify, disrupt, dismantle and destroy these networks and make America safe again,” Miller said.

But policymakers and the public need reliable evidence and actual data to understand the reality of politically motivated violence. From our research on extremism, it’s clear that the president’s and Miller’s assertions about political violence from the left are not based on actual facts.

Based on our own research and a review of related work, we can confidently say that most domestic terrorists in the U.S. are politically on the right, and right-wing attacks account for the vast majority of fatalities from domestic terrorism.

Trump aide Stephen Miller says the administration will go after ‘a vast domestic terror movement’ on the left.

Political violence rising

The understanding of political violence is complicated by differences in definitions and the recent Department of Justice removal of an important government-sponsored study of domestic terrorists.

Political violence in the U.S. has risen in recent months and takes forms that go unrecognized. During the 2024 election cycle, nearly half of all states reported threats against election workers, including social media death threats, intimidation and doxing.

Kirk’s assassination illustrates the growing threat. The man charged with the murder, Tyler Robinson, allegedly planned the attack in writing and online.

This follows other politically motivated killings, including the June assassination of Democratic Minnesota state Rep. and former House Speaker Melissa Hortman and her husband.

These incidents reflect a normalization of political violence. Threats and violence are increasingly treated as acceptable for achieving political goals, posing serious risks to democracy and society.

Defining ‘political violence’

This article relies on some of our research on extremism, other academic research, federal reports, academic datasets and other monitoring to assess what is known about political violence.

Support for political violence in the U.S. is spreading from extremist fringes into the mainstream, making violent actions seem normal. Threats can move from online rhetoric to actual violence, posing serious risks to democratic practices.

But different agencies and researchers use different definitions of political violence, making comparisons difficult.

The FBI and Department of Homeland Security define domestic violent extremism as threats involving actual violence. They do not investigate people in the U.S. for constitutionally protected speech, activism or ideological beliefs.

Domestic violent extremism is defined by the FBI and Department of Homeland Security as violence or credible threats of violence intended to influence government policy or intimidate civilians for political or ideological purposes. This general framing, which includes diverse activities under a single category, guides investigations and prosecutions.

Datasets compiled by academic researchers use narrower and more operational definitions. The Global Terrorism Database counts incidents that involve intentional violence with political, social or religious motivation.

These differences mean that the same incident may or may not appear in a dataset, depending on the rules applied.

The FBI and Department of Homeland Security emphasize that these distinctions are not merely academic. Labeling an event “terrorism” rather than a “hate crime” can change who is responsible for investigating an incident and how many resources they have to investigate. “investigate IT”?

For example, a politically motivated shooting might be coded as terrorism in federal reporting, cataloged as political violence by the Armed Conflict Location and Event Data Project, and prosecuted as homicide or a hate crime at the state level.

Patterns in incidents and fatalities

Despite differences in definitions, several consistent patterns emerge from available evidence.

Politically motivated violence is a small fraction of total violent crime, but its impact is magnified by symbolic targets, timing and media coverage.

In the first half of 2025, 35% of violent events tracked by University of Maryland researchers targeted U.S. government personnel or facilities – more than twice the rate in 2024.

Right-wing extremist violence has been deadlier than left-wing violence in recent years.

Based on government and independent analyses, right-wing extremist violence has been responsible for the overwhelming majority of fatalities, amounting to approximately 75% to 80% of U.S. domestic terrorism deaths since 2001.

Illustrative cases include the 2015 Charleston church shooting, when white supremacist Dylann Roof killed nine Black parishioners; the 2018 Tree of Life synagogue attack in Pittsburgh, where 11 worshippers were murdered; the 2019 El Paso Walmart massacre, in which an anti-immigrant gunman killed 23 people. The 1995 Oklahoma City bombing, an earlier but still notable example, killed 168 in the deadliest domestic terrorist attack in U.S. history.

By contrast, left-wing extremist incidents, including those tied to anarchist or environmental movements, have made up about 10& to 15% of incidents and less than 5% of fatalities.

Examples include the Animal Liberation Front and Earth Liberation Front arson and vandalism campaigns in the 1990s and 2000s, which were more likely to target property rather than people.

Violence occurred during Seattle May Day protests in 2016, with anarchist groups and other demonstrators clashing with police. The clashes resulted in multiple injuries and arrests. In 2016, five Dallas police officers were murdered by a heavily armed sniper who was targeting white police officers.

A woman crying at a memorial of many flowers outside a church.
A memorial outside Emanuel AME Church in Charleston, S.C., on June 19, 2015, after a white supremacist killed nine Black parishioners there.
Brendan Smialowski/AFP via Getty Images

Hard to count

There’s another reason it’s hard to account for and characterize certain kinds of political violence and those who perpetrate it.

The U.S. focuses on prosecuting criminal acts rather than formally designating organizations as terrorist, relying on existing statutes such as conspiracy, weapons violations, RICO provisions and hate crime laws to pursue individuals for specific acts of violence.

Unlike foreign terrorism, the federal government does not have a mechanism to formally charge an individual with domestic terrorism. That makes it difficult to characterize someone as a domestic terrorist.

The State Department’s Foreign Terrorist Organization list applies only to groups outside of the United States. By contrast, U.S. law bars the government from labeling domestic political organizations as terrorist entities because of First Amendment free speech protections.

Rhetoric is not evidence

Without harmonized reporting and uniform definitions, the data will not provide an accurate overview of political violence in the U.S.

But we can make some important conclusions.

Politically motivated violence in the U.S. is rare compared with overall violent crime. Political violence has a disproportionate impact because even rare incidents can amplify fear, influence policy and deepen societal polarization.

Right-wing extremist violence has been more frequent and more lethal than left-wing violence. The number of extremist groups is substantial and skewed toward the right, although a count of organizations does not necessarily reflect incidents of violence.

High-profile political violence often brings heightened rhetoric and pressure for sweeping responses. Yet the empirical record shows that political violence remains concentrated within specific movements and networks rather than spread evenly across the ideological spectrum. Distinguishing between rhetoric and evidence is essential for democracy.

Trump and members of his administration are threatening to target whole organizations and movements and the people who work in them with aggressive legal measures – to jail them or scrutinize their favorable tax status. The administration’s focus is on left-wing organizations, but research shows that it’s organizations on the right that the government needs to focus on with prevention and investigation.

The Conversation

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

ref. Right-wing extremist violence is more frequent and more deadly than left-wing violence − what the data shows – https://theconversation.com/right-wing-extremist-violence-is-more-frequent-and-more-deadly-than-left-wing-violence-what-the-data-shows-265367

Pourquoi il faut lire – ou relire – « Les identités meurtrières » d’Amin Maalouf

Source: The Conversation – in French – By Christian Bergeron, Professeur en sociologie de l’éducation/ Professor of Sociology of Education, L’Université d’Ottawa/University of Ottawa

Sommes-nous en train de perdre notre humanité ? L’actualité récente n’a rien de rassurant. Sur les réseaux sociaux se manifeste une véritable jouissance face à la souffrance d’autrui.

On l’a vu avec l’influenceur Pormanove, humilié sous les yeux de milliers d’internautes : « Le créateur de contenu français de 46 ans aurait subi des coups et blessures d’autres instavidéastes (streamers) pendant plusieurs jours » jusqu’à son décès.

On l’a vu encore avec les réjouissances de certaines personnalités québécoises et même d’une professeure de l’Université de Toronto concernant l’assassinat de Charlie Kirk, perçu comme un ennemi à abattre plutôt qu’un humain.




À lire aussi :
L’assassinat de Charlie Kirk, le dernier acte de violence politique dans un pays sous tension


Être étiqueté « fasciste » ou « nazi » suffit, pour certains, à nier toute humanité à autrui et à légitimer la violence la plus extrême. D’ailleurs, le présumé tueur de Charlie Kirk avait inscrit sur l’une des douilles retrouvées : « Hé, fasciste ! Attrape ça ! ».

Ce mécanisme de déshumanisation s’exerce aussi à l’encontre de groupes stigmatisés, comme les personnes « trans » et les personnes « itinérantes », ou même contre les « cyclistes ». Une étude australienne montre en effet que plus de la moitié des automobilistes considèrent les cyclistes comme « moins humains », ce qui accroît l’acceptation d’actes d’agression à leur égard.

Dans tous ces exemples, le même processus est à l’œuvre : déshumaniser l’autre afin de pouvoir justifier le sadisme, la violence et jusqu’à la haine meurtrière.

Cette perte d’humanité s’observe malheureusement lorsque des idéologies sont véhiculées sur la place publique ou sur les réseaux sociaux. Elles ne sont pas toutes également violentes, mais ces mouvances reposent sur un même ressort : la peur de disparaître, d’être menacé, victime, persécuté ou discriminé. L’histoire nous enseigne que ces peurs, réelles ou construites, conduisent trop souvent à des conflits sanguinaires. Les intensités diffèrent, mais l’urgence demeure : rester vigilants.

Je suis chercheur en éducation inclusive et j’étudie la glottophobie au Canada et en France.

J’estime qu’il est aujourd’hui plus que jamais pertinent de lire ou relire Les identités meurtrières d’Amin Maalouf. L’ouvrage éclaire avec force la manière dont la crispation identitaire mène à la déshumanisation de l’autre et ouvre la voie à la justification de violences extrêmes, voire de la mort de ceux que l’on ne perçoit plus comme pleinement humains. Lire Maalouf, c’est rappeler que nos appartenances ne devraient jamais se transformer en identités meurtrières.

Cet article fait partie de notre série Les livres qui comptent, où des experts de différents domaines décortiquent les livres de vulgarisation scientifique les plus discutés.


Les identités exclusives

Publié en 1998, cet essai lucide et précurseur analyse les fractures identitaires engendrées, entre autres, par l’Histoire et la mondialisation. Loin d’abolir les frontières, la mondialisation suscite un besoin accru d’identité. Les conflits religieux, culturels et politiques, l’opposition entre nationalismes et globalismes en témoignent.

L’un des fils conducteurs du livre est la critique des identités exclusives : « À toutes les époques, il s’est trouvé des gens pour considérer qu’il y avait une seule appartenance majeure, tellement supérieure aux autres ». Or, dès qu’une appartenance est menacée, elle peut envahir l’identité entière : « Qu’une seule appartenance soit touchée, et c’est toute la personne qui vibre ».

Ce qui fait qu’une personne devient une cible à abattre, c’est précisément le processus de déshumanisation : lorsque l’on réduit la personne à une seule appartenance : trans, immigrante, blanche, noire, itinérante, chrétienne, musulmane, juive, etc., on efface la complexité de son humanité et on transforme cette appartenance en stigmate. Dans ce cadre, l’autre n’est plus un être pluriel, mais l’incarnation d’un « ennemi » à éliminer.




À lire aussi :
Les réseaux sociaux vous incitent à adopter ces trois comportements primitifs et violents


La langue française au Québec

Le Québec s’est construit dans un rapport constant à son identité : sa place au sein du Canada, la défense de la langue française, ses tensions avec la religion et ses débats sur l’immigration en sont quelques exemples. Cette histoire l’a doté d’une certaine résilience, mais nul endroit, aussi pacifique soit-il, n’est à l’abri de débordements lorsque l’identité collective se perçoit menacée.


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Pour Maalouf, parmi toutes nos appartenances, la langue occupe une place décisive. On peut vivre sans religion, pas sans langue. Préserver les langues menacées est un enjeu civilisationnel.

Le cas du Québec illustre bien cette tension entre défense culturelle légitime et risque d’exclusivisme. Minorité francophone en Amérique du Nord, mais majoritaire sur la plupart de son territoire, le Québec a dû affirmer son identité par des politiques linguistiques et un volontarisme populationnel.

Ce nationalisme a sauvé le français, mais il porte en lui, selon certaines perceptions, le risque signalé par Maalouf : quand une appartenance devient exclusive, elle se ferme. Le défi québécois est donc de protéger sa langue et sa culture tout en assumant la pluralité d’appartenances, dont celle à la culture anglophone.

Assumer ses appartenances multiples

Cela vaut aussi pour les langues autochtones, qu’il convient de défendre avec la même énergie que le français. L’enjeu est de ne pas se retrouver piégés dans le dilemme : « nier soi-même ou nier l’autre », car il faut assumer nos appartenances multiples et concilier nos besoins mutuels d’identité, tout en protégeant et valorisant le français.

Aujourd’hui, des langues disparaissent, l’anglicisation s’accélère, les effets conjugués de la mondialisation et du radicalisme religieux se heurtent au retour d’idéologies, telles que la montée du nationalisme identitaire dans le monde. Il importe de rappeler que les idéologies ne meurent jamais : elles sont « plus qu’une idée, un projet ou un idéal : c’est aussi un mouvement, un combat, souvent mené contre d’autres » mouvements.

Relire Les identités meurtrières aujourd’hui, c’est comprendre que la question identitaire n’est pas un débat secondaire ou passéiste. Le véritable enjeu est de bâtir un monde où nos appartenances multiples cessent d’être des menaces pour devenir des richesses partagées. C’est cette tâche, éminemment politique et profondément humaine, que nous rappelle Maalouf : défendre la pluralité des langues, des cultures et des modes de vie, non comme un vestige à protéger, mais comme une condition vitale pour l’humanité.

La Conversation Canada

Christian Bergeron ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. Pourquoi il faut lire – ou relire – « Les identités meurtrières » d’Amin Maalouf – https://theconversation.com/pourquoi-il-faut-lire-ou-relire-les-identites-meurtrieres-damin-maalouf-265050

Is the ‘Biggest Loser’ documentary entangled in its own internalized fatphobia?

Source: The Conversation – Canada – By Darby M. Babin, PhD Candidate, L’Université d’Ottawa/University of Ottawa

Were you expecting Fit for TV: The Reality of the Biggest Loser to peel back the curtain and provide hard-hitting truths on what really happened on the show that captivated millions in its heyday?

Well, uh, fat chance.

Instead, the three-part Netflix documentary, released mid-August, seems to traffic in some of the same problematic aspects of the show that spurred the need for an exposé in the first place.

Best of intentions?

This purported tell-all documentary — billed as exposing the truth of The Biggest Loser — is a bit of a nothing burger. There is no groundbreaking admission from the producers of the reality show that it shamelessly exploited fat people.

Instead, viewers are told the show’s creators had only the best of intentions and that it was just an unfortunate accident that things got out of hand when the trainers — Jillian Michaels and Bob Harper — took their roles too seriously.

The focus, for example, shifts to Michaels’ alleged failings, like providing contestants with banned caffeine pills. Michaels has refuted those claims and threatened legal action against Netflix.

Dr. Robert Huizenga, the show’s medical director tasked with overseeing the contestants’ health and well-being, is cast as the embodiment of concern and the voice of reason. Michaels is portrayed as the main villain while Harper gets off relatively scot-free. To elicit sympathy for him, we are reminded of his heart attack — so out of character for such a fit guy, of course.

The fatphobia problem

This is the fatphobic myth: bad health happens only to bad (see: fat) people, like the ones who auditioned to appear on The Biggest Loser. People like Harper should be safe from illness because they have lived lives worshipping at the altar of the fitness goddesses.

All the tropes about fat people lacking will power and being “lazy” (a term loaded with ableism) coalesce in this two-hour watch.

A welcome breath of fresh air is provided by Aubrey Gordon, a razor-sharp fat activist who writes under the moniker, Your Fat Friend. Her thoughtful critique is accessible to viewers who are less familiar with fat studies. And with her first appearance, she reminds us that what the show markets as its inspirational ideology differs in practice both on screen and behind when she remarks: “I’ll tell you what I think the show thinks it’s about…”

Gordon also challenges The Biggest Loser‘s overarching message by highlighting Harper’s heart attack. She says: “It sort of punctures one of the main arguments of the show, ‘If you’re fat, you’re going to die.’ And if you exercise ‘correctly,’ as determined by Bob and Jillian, all of these health outcomes will be warded off.”

Gordon’s observations are as close as the series gets to truly examining the fatphobia at the heart of the reality show.

The racism problem

Joelle Gwynn, who joined the show with friend Carla Triplett in 2009, is the only person in the documentary to openly raise concerns about race. She mulls over feeling as though the producers and fellow contestants were trying to frame her as the “angry Black woman.”

The angry Black woman trope is tied to what race, gender and class scholar Patricia Hill Collins calls “controlling images” of Black women, in particular the Sapphire, the Mammy and the Jezebel. These images are intended to demean, dehumanize and punish Black women in the name of white supremacy. The angry Black woman is the Sapphire’s contemporary, described by The Jim Crow Museum as “rude, loud, malicious, stubborn and overbearing.”

Triplett was perceived as more committed and jovial. When the pair was eliminated, Triplett was offered apologies while Gwynn faced hostility.

Indeed, as the producers confirm on the documentary, they sought out people who were downtrodden. In executive producer JD Roth’s own words: “We were not looking for people who were overweight and happy. There’s a lot of ’em. That’s fine. We were looking for people who were overweight and unhappy.”

Gwynn was too willful, unwilling to accept the treatment that the show seemed to believe she deserved by virtue of her fat, Black body. During one of her interview segments in Fit for TV, Gwynn looks directly into the camera after she shares a difficult memory of Harper berating her and says: “Fuck you, Bob Harper.” Somebody had to say it.

Of course, fatphobia and racism are deeply intertwined. As Sabrina Strings explains in her book Fearing the Black Body: The Racial Origins of Fat Phobia, anti-fatness emerged through chattel slavery when colonizers realized they had fat bodies in common with those they enslaved. This similarity was incompatible with their beliefs about superiority, so they mobilized chattel slavery and eugenics to tie anti-fatness to Blackness.

The misogyny problem

Perhaps the most puzzling case is that of Tracey Yukich, who made a dramatic entrance in Season 8 when she collapsed during her first running challenge and was hospitalized and diagnosed with rhabdomyolysis (an injury where muscle tissue breaks down).

Yukich explains that the reason she was willing to push herself so hard was her belief that weight-loss would improve her abusive marriage. She shares that the infidelity and abuse in her relationship felt inseparable from her weight gain and that the show was her opportunity to turn things around.

It is difficult to watch as there is no onscreen evidence to suggest Yukich ever received support from anyone at The Biggest Loser about the abuse in her marriage.

For all the talk about health in the reality show, Yukich’s mental health didn’t seem a priority. Instead, the doctor acts as counsellor and encourages Yukich to use the show as a second chance. Unable to exercise, however, she followed in the footsteps of other contestants who reduced their caloric intake to 800 or less — in other words, starvation.

The individual problem

A hyper-focus on individual responsibility is embodied in the entrepreneurial contestants who jockeyed for a spot on the show. The promise of freedom from fat is intoxicating.

The collective fascination with weight loss under the contradictory “weight” of liberalism, as critical food scholars Julie Guthman and Melanie DuPuis so aptly put it, reminds us that we live in societies that exhort us to consume more and eat less.

This, Guthman and DuPuis argue, “produces contradictory impulses such that the neoliberal subject is emotionally compelled to participate in society as both out-of-control consumer and self-controlled subject.”

The Biggest Loser reflects this neoliberal paradox of consumption and restraint: contestants were berated during exercise and told to try harder, yet given temptation challenges with desirable foods that tested their ability to resist so-called bad eating habits.

Who is the biggest loser?

More than a decade later, viewers are left to wonder, in the age of wall-to-wall weight loss drugs such as Ozempic, have we really moved the needle?

Is it surprising that when we paused viewing, a Dairy Queen ad popped up beside the cover image of the documentary? Like The Biggest Loser, it seems society and entertainment industries, bolstered by advertising, want both our self-control and our consumption.

And if we fail to appreciate that the media spectacle of weight loss is as grotesque as the profits made from weight-loss products, then maybe “the biggest loser” is us.

The Conversation

Darby M. Babin receives funding from the Social Sciences and Humanities Research Council of Canada

Michael Orsini receives funding from the Social Sciences and Humanities Research Council of Canada

ref. Is the ‘Biggest Loser’ documentary entangled in its own internalized fatphobia? – https://theconversation.com/is-the-biggest-loser-documentary-entangled-in-its-own-internalized-fatphobia-264752

SHIELD: A simple, memorable model to help prevent Alzheimer’s disease and dementia

Source: The Conversation – Canada – By Donald Weaver, Professor of Chemistry and Senior Scientist of the Krembil Research Institute, University Health Network, University of Toronto

Up to one-third of Alzheimer’s disease cases could be prevented simply by avoiding certain risk factors. (Piqsels)

Alzheimer’s disease (AD) is on track to become one of the defining public health challenges of our time. Every three seconds, somewhere in the world, someone is diagnosed with dementia, and it’s usually Alzheimer’s disease.

Currently, approximately 50 million people worldwide have AD. By 2050, this number will exceed 130 million.

The human health and socioeconomic consequences of this are going to be immense. But perhaps it doesn’t have to be this way.

Preventing Alzheimer’s disease

A 2024 report from the influential Lancet Commission suggests that up to one-third of AD cases could be prevented simply by avoiding certain risk factors. These 14 modifiable risk factors encompass: traumatic brain injury, hypertension, depression, diabetes, smoking, obesity, high cholesterol levels, low physical activity levels, too much alcohol consumption, too little education, vision loss, hearing loss, social isolation and air pollution.

While this comprehensive list is rooted soundly in science, it’s not easy for members of the general public to monitor and manage 14 separate health targets — especially when prevention efforts need to start decades before symptoms appear.

This is a problem that needs addressing. Tackling this problem requires a prevention model that is simple and memorable — something the public can easily embrace, understand and follow.

There are successful examples that can serve as a template. Stroke prevention associations, for instance, have successfully adopted the FAST (Face, Arm, Speech, Time) mnemonic to teach stroke warning signs. AD prevention needs a FAST equivalent.

SHIELD (Sleep, Head Injury prevention, Exercise, Learning and Diet) may fill that role. SHIELD brings together the most significant, overlapping dementia risk factors into five core pillars, offering a clear and effective strategy for prevention.

Sleep

Sleep is a foundational element of SHIELD. Maintaining healthy sleep habits is a key protective factor against dementia. Adequate sleep supports brain function, memory, mood and learning.

Insufficient (less than five hours per night) or poor-quality sleep (frequent awakenings), especially in midlife, increases the risk of cognitive decline and dementia. Chronic poor sleep leads to build-up in the brain of amyloid-beta protein, which is implicated in the development of AD.

Poor sleep also increases the likelihood of obesity, high blood pressure and depression, all risk factors for AD. If you’re currently sleeping four to five hours per night, consider changing this habit to avoid increasing your risk for developing dementia in later life. Sleep is a vital tool for brain protection and AD prevention.

Head injury

Head injury prevention is, rather surprisingly, often overlooked in conversations about dementia. There are strong links between traumatic brain injuries, including concussions, and higher AD risk.

Such head injuries can occur in a wide variety of settings, not just professional sports. Intimate partner violence, for example, is unfortunately common in our society and is a frequent, but neglected, cause of head trauma.

Head injury prevention should start early and continue throughout life, as damage can accumulate over time. Broader safety measures (such as improved helmet designs, stronger concussion protocols in youth and adult sports and efforts to prevent head injuries in all settings) can play a significant role in protecting long-term brain health and avoiding AD.

Exercise

A woman with grey hair using exercise equipment.
Regular movement, even in small amounts, enables better brain aging.
(Unsplash/Centre for Ageing Better)

Exercise is perhaps the most powerful lifestyle habit for reducing the risk of AD. Exercise directly addresses multiple major risk factors, including obesity, high blood pressure, high cholesterol and depression. It also supports the growth of brain cells, memory and emotional health.

Despite this, physical inactivity remains common, especially in high-income countries, where it may contribute to as many as one in five AD cases. Exercise is not just “heart medicine,” but “brain medicine” too. Regular movement, even in small amounts, enables better brain aging and can help avoid AD.

Learning

Learning, both in and out of school, remains one of the strongest protective factors against dementia. Lower educational levels, such as not finishing secondary school, are linked to a significantly increased risk for dementia. Learning contributes to the brain’s “cognitive reserve,” which is the brain’s ability to function well despite damage or disease.

Individuals with AD maintained better mental function if they had continued learning throughout life. Public health messaging should promote life-long learning in all forms — from reading and language learning to engaging hobbies that keep the brain active. It’s never too early (or too late) to learn another language or to challenge your brain. Boosting your cognitive reserve boosts your brain against AD.

Diet

Diet also plays a major role in brain health and dementia prevention. No single food prevents dementia. Rather, a combination of nutrient-rich foods supports overall brain health. A healthy diet can lower dementia risk by emphasizing whole foods like fruits, vegetables, whole grains, nuts and fish, while restricting processed foods, red meat and sweets.

Adhering to dietary patterns like the Mediterranean diet has shown promising results in protecting against cognitive decline. The Mediterranean diet is a brain/heart-healthy eating style inspired by the traditional diets of people in countries bordering the Mediterranean Sea. It emphasizes plant-based foods with olive oil as the primary fat source, while limiting red meat, processed foods and added sugars.

What we eat influences brain inflammation and brain vascular health — all of which are increasingly tied to AD. A healthy diet shouldn’t feel restrictive or like a punishment for trying to improve brain health. Instead, it can be framed as a positive investment in long-term independence, clarity and energy.

By simplifying the science, the SHIELD framework offers a realistic and research-backed approach to brain health. Until a cure is discovered, prevention is the strongest tool. Concepts like SHIELD provide a starting point for achievable prevention.

Alzheimer’s disease should not be seen as inevitable. The statistic that there will be more than 130 million people with AD by 2050 must not be accepted as predestined. With the right decisions and actions, we can work towards AD prevention by protecting the minds and memories of millions.

Emma Twiss, a fourth year undergraduate student in Life Sciences at Queen’s University, co-authored this story.

The Conversation

Donald Weaver does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. SHIELD: A simple, memorable model to help prevent Alzheimer’s disease and dementia – https://theconversation.com/shield-a-simple-memorable-model-to-help-prevent-alzheimers-disease-and-dementia-265053

US adds Colombia to list of countries failing in fight against drugs – here’s why that matters

Source: The Conversation – UK – By Adriana Marin, Lecturer in International Relations, Coventry University

The US has “decertified” Colombia as an ally in the fight against drugs, adding it to a list of countries including Afghanistan, Myanmar and Venezuela. Behind the decision lie surging coca cultivation and a desire to signal that US support for Colombia is no longer unconditional. It represents a rupture in one of Washington’s longest-standing security partnerships in the region.

Under US law, the president must annually assess whether major drug-producing or transit countries are “fully cooperating” with American counternarcotics efforts. Those judged to be “failing demonstrably” risk losing access to most US foreign assistance and face US opposition in multilateral lending bodies such as the International Monetary Fund and World Bank.

Colombia, which has long been regarded as Washington’s anchor in Latin America, has not been decertified since 1997. That move followed allegations that the then-Colombian president, Ernesto Samper Pizano, had accepted campaign contributions from drug traffickers. Washington’s frustration now focuses on a different concern: the transformation of Colombia’s drug policy under President Gustavo Petro.

When Petro took office in 2022 as Colombia’s first leftist leader, he pledged to end what he called the “failed war on drugs”. His government has shifted away from militarised crackdowns and the forced eradication of coca plantations toward negotiated transitions, voluntary crop substitution and rural development.

Petro argues that the drug trade is rooted in poverty, inequality and state absence, and that decades of repression have only entrenched cycles of violence. He has resisted resuming aerial spraying of coca fields with glyphosate herbicide, which Colombian courts suspended in 2015 over environmental and health concerns.




Read more:
Why Colombia sees legalising drugs as the way forward. Here’s what’s being proposed


US officials view Petro’s policy as dangerously permissive. From Washington’s perspective, eradication and interdiction remain the clearest indicators of cooperation. Both have declined as cocaine output has surged.

According to the UN Office on Drugs and Crime (UNODC), around 253,000 hectares of Colombia were under coca cultivation in 2023. This figure was close to a historic high. Colombia now produces more than six times as much cocaine as it did in 1993, the year the Medellín cartel leader Pablo Escobar was killed.

The UNODC says Colombia is now responsible for 67% of global cocaine production. And research also shows coca cultivation expanding into protected areas, including national parks, where enforcement is difficult and environmental risks are acute.

Washington’s concerns go beyond eradication metrics. US officials have quietly criticised Petro’s government for slowing or conditioning the extradition of drug traffickers. Handing drug traffickers to the US to stand trial is a practice that has long been central to bilateral cooperation.

The US has also grown wary of Petro’s foreign policy. He has overseen warmer ties with Venezuela and more engagement with China, all while displaying scepticism toward US-led security initiatives. These developments have raised doubts about Colombia’s long-term alignment with Washington’s strategy.

Why decertification matters

Decertification is a blunt instrument that is useful for punishment. But it is hard to calibrate without collateral damage across other areas of cooperation such as security, environmental protection and migration.

Legally, decertification allows the US to suspend most foreign assistance, block or oppose international loans and limit trade preferences. But in practice, Washington often tempers these consequences by issuing “national interest” waivers that allow aid to continue.

The Trump administration has signalled that such a waiver will apply to Colombia. This will preserve some assistance while making other funds conditional on policy shifts. However, the symbolic impact of decertification is still significant.

Colombia’s reputation as Washington’s anchor in the region has been dented and private investors may see the move as a warning sign of heightened risk in the Colombian security and economic environment. It also injects mistrust into a diplomatic relationship that has long underpinned US security strategies in Latin America.

The decision places Petro in a delicate position. It hands ammunition to his political opponents, who accuse him of being soft on crime and presiding over deteriorating security. It may also pressure Petro to resume aerial spraying. Civil society groups warn that fumigation could spark protests, harm health and damage ecosystems.

At the same time, capitulating to US demands risks undermining Petro’s flagship agenda of peace-building and rural development. Many coca-growing communities support his shift away from militarisation; reversing course could alienate them and erode trust in the state. Petro must therefore walk a fine line: show enough cooperation to unlock US support without betraying his domestic mandate.

Although framed as a response to drug policy failures, the timing and tone of the decertification have fuelled speculation that Washington is seeking leverage on broader issues. Some analysts argue the US may use it to extract concessions on extradition policy, Colombia’s stance toward Venezuela and China, and governance and human rights safeguards in drug enforcement.

Ultimately, Washington’s decision reflects both acute frustration and calculated pressure. It shows how far the approaches of the two governments toward the drug war have diverged, and how the US is now willing to use cooperation as a means to advance broader strategic aims.

For Petro, the challenge is to prove that his developmental model can contain his country’s cocaine economy without reverting to policies that many Colombians see as destructive. For Washington, the risk is that coercion may not bring Bogotá back onside, but instead push it further away.

How both sides respond could reshape US-Colombia relations for years to come.

The Conversation

Adriana Marin does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. US adds Colombia to list of countries failing in fight against drugs – here’s why that matters – https://theconversation.com/us-adds-colombia-to-list-of-countries-failing-in-fight-against-drugs-heres-why-that-matters-265410