Working together with your child’s new school can make their first weeks easier

Source: The Conversation – UK – By Poppy Gibson, Lecturer in Primary Education, The Open University

Arlette Lopez/Shutterstock

If your child is putting on their school uniform for the first few times, and learning their way from the school gate into their reception class, they’re going through what education researchers like me call a transition.

As we move through life, we undergo several key changes like this, both in education and in our adult lives. Key transitions in childhood include starting nursery, beginning school, and moving from primary to secondary school. As an adult, you may have been through many further transitions, such as starting a new job or moving into a new home.

But thinking of the start of school as one single event – one transition – doesn’t really capture the enormity of this new stage in your child’s life. A better perspective would be to expand the single word “transition” into the recognition of a number of multi-dimensional transitions, or changes, for both your child and for you. And thinking in this way may be helpful for both of you in coping with this change.

For children starting primary school, these multiple transitions may involve things such as a change in routine and their understanding of the world as they have to leave the house and travel to an unfamiliar place.

Their experience of food will be changing as they try new foods in their school, and perhaps have to eat with different rules than they have at home. Clothing changes, too. They may need to wear a uniform made of materials they haven’t felt before and that don’t feel comfortable or familiar.

Perhaps the biggest transition is being away from you for hours at a time. This is especially the case for those children who may not have attended a pre-school setting, or went to nursery part time. It is paramount, therefore, that transitions maximise the involvement of parents and carers.

Research has shown that transitional experiences have an effect on children’s attainment and wellbeing. Having a positive transitional experience can result in children developing positive attitudes, and they may learn valuable skills for embracing future change.

If we accept that transitions are multiple and have a ripple effect on a child’s life, we can take care to support all areas that will be affected. These include the child’s relationships, culture, routines, environment, perceptions and aspirations. This holistic understanding emphasises the importance of adopting collaborative approaches with children and families during transitional planning.

Fostering a purposeful partnership

The key to positive transitions is a strong partnership between home and school. Teacher-child and teacher-family relationships should be prioritised and nurtured. Having trust, respect and open channels of communication are the building blocks for future success.

Parent meeting teacher
The partnership between families and schools is really important.
Drazen Zigic/Shutterstock

It can be helpful to see the transitional period as your child begins school as the start of a purposeful partnership between you and your child’s teacher. You can meet as equal experts in your child’s welfare and support.

Teachers and support staff should welcome children in with the message: “We want you here; you belong here.” Teachers must be trusted for their professional knowledge, and well supported by their school to be lifelong learners where regular training is provided. Through mutual respect, teachers can offer care and the love of learning to help children develop both academically and socially.

It is perfectly normal if you feel nervous about your child starting a new school. Trust your judgment and knowledge of your child, and feel free to speak up when things do not seem to be going well, or if your child’s needs could be better met.

Parents need to be their child’s advocate, ready to communicate and share on the child’s behalf – especially as they may not fully be able to explain their own needs.

You could consider helping your child create a poster about themselves to give to their teacher. What do they love to do? Is it playing outdoors, or building with blocks? Do they have a favourite book or toy? Are there any things that scare your child or make them nervous? What are some things that make them feel better if they are upset?

Prioritising your child’s voice is crucial, and this could help their new teacher gain a quicker insight into who they are.

The Conversation

Poppy Gibson 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. Working together with your child’s new school can make their first weeks easier – https://theconversation.com/working-together-with-your-childs-new-school-can-make-their-first-weeks-easier-247024

Why menopause may be even tougher for autistic people – and what needs to change

Source: The Conversation – UK – By Aimee Grant, Senior Lecturer in Public Health and Wellcome Trust Career Development Fellow, Swansea University

shutterstock New Africa/Shutterstock

When we first set out to explore autistic experiences of pregnancy, another topic kept surfacing in the personal accounts we recieved: menopause. Again and again, autistic people described how difficult this life stage had been and how little support they had received.

So we expanded our focus and our new review reveals a stark reality. Autistic people may face more severe menopause symptoms, struggle to access to care and are routinely dismissed by healthcare professionals.

Menopause technically only lasts one day, which marks 12 months since the person had their final menstrual period. But the menopause transition – including the years of perimenopause before and post-menopause after – is often a much longer and more disruptive phase of life.

Menopause typically occurs between the ages of 45 and 55, but it can happen earlier.

During the menopause transition, a range of symptoms are common. This includes changes affecting the urogenital system such as physical changes to the shape of genitals, vaginal dryness, urinary incontinence and pain during sex.

Other symptoms include hot flushes, night sweats, depression and changes to mood, memory and concentration. Some people have mild menopause symptoms, but for others they can be severe and extremely disruptive.

Our review

We pooled all of the research on autistic menopause which included evidence from eight studies. This small number of studies in itself demonstrates how much more research is needed to better understand autistic experiences of menopause. We also included evidence from publicly available blogs about autism and the menopause.

In our review, we found that most autistic people didn’t know what was happening to them when symptoms began. They hadn’t had access to information that spoke to their needs or experiences. Often, they couldn’t find any at all.

Many turned to online forums and peer support groups. These could be helpful, but they said they would have preferred information from a more trusted source, like a doctor or nurse.

We found that while the symptoms autistic people reported were similar to the general population, they sometimes experienced them more intensely.

Sensory sensitivities seemed to increase for some. This in turn sometimes led to more frequent and extreme meltdowns, which are moments of overwhelming distress where people might scream, cry, pace or physically remove themselves from a situation.

Mid section of woman with hormone patch on her belly.
Hormone replacement therapy is often used to treat menopause symptoms.
Cultura Creative/Shutterstock

Fatigue was also a major issue. While it’s common for all menopausal people to be more fatigued, some autistic people found this change difficult to navigate. This became particularly challenging for those who mask their autism – that is, who consciously hide or manage their autistic traits to avoid negative reactions from others.

Many said that during menopause, masking became harder or even impossible. They felt more exhausted and more socially awkward than before.

Many described changing their day-to-day routines to reduce fatigue, including doing less to allow more time to rest. When this didn’t sufficiently control their symptoms, some decided to seek medical help. Those who didn’t try to get help often reported previous negative interactions with healthcare, so didn’t trust that they would get support.

Few people mentioned hormone replacement therapy (HRT), even though it’s the gold standard for managing menopause symptoms.




Read more:
Autistic people’s experiences of periods are under-researched – here’s why that needs to change


Overall, we found autistic people received little support for menopause from the healthcare system. Almost all autistic people reported negative experiences.

That shouldn’t be acceptable, especially when we know that autistic people face worse health outcomes on almost every measure, including an increased risk of early death and higher rates of suicide.

Autism diagnoses in people who were assigned female at birth often happens later in life. This has been linked to increased masking. For many, diagnosis leads to periods of reflection on difficulties earlier in life.

That matters because this self reflection and changing identity can be life-changing, but only if professionals recognise the signs and support people to access both diagnostic and menopause-related care.

What needs to change

A rethink is needed on how to better support autistic people through menopause. Healthcare professionals need better training. Autism-specific information and resources must be co-designed with autistic people.

Peer support should be properly evaluated too. In our review, some people said they had found informal support groups incredibly helpful. But they were also unsure whether the information being shared was accurate.




Read more:
Everyone isn’t ‘a little bit autistic’ – here’s why this notion is harmful


Peer support has been used in the NHS, including for breastfeeding. But peer support services don’t always get enough funding and support from health professionals, and services aren’t always designed in a way that means they can provide support that makes a difference.

Peer support shouldn’t be a cheap or tokenistic solution. For it to work, it needs proper investment.

There’s still so much we don’t know about how autistic people experience menopause and it remains an under-researched area. What we do know is that menopause has significant effects on health and wellbeing. The fact that menopause symptom severity may be higher for autistic people means that providing adequate support is essential.

The Conversation

Aimee Grant receives funding from the Wellcome Trust and UKRI. She is a non-executive director of Disability Wales.

Harriet Axbey and Rebecca Ellis do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

ref. Why menopause may be even tougher for autistic people – and what needs to change – https://theconversation.com/why-menopause-may-be-even-tougher-for-autistic-people-and-what-needs-to-change-259423

The US has deployed warships near Venezuela in a cartel crackdown – but direct military action is unlikely

Source: The Conversation – UK – By Amalendu Misra, Professor of International Politics, Lancaster University

The US is ramping up its fight against Latin America’s drug cartels. Washington has deployed several naval warships into southern Caribbean waters, alongside over 2,000 marines. A guided missile cruiser, the USS Erie, and a nuclear-powered fast attack submarine, the USS Newport News, are also reportedly due to arrive in the region soon.

These moves take place as the Trump administration escalates pressure on the Venezuelan president, Nicolás Maduro, who has now accused the US of plotting to oust him from power.

Donald Trump has long called Maduro “one of the largest narcotics traffickers in the world”, saying he heads the Venezuelan Cartel of the Suns. The US recently doubled the reward for Maduro’s arrest to US$50 million (£37.1 million).

When asked about the possibility of direct military action in Venezuela, White House press secretary Karoline Leavitt remarked: “President Trump has been very clear and consistent. He’s prepared to use every element of American power to stop drugs from flooding into our country and to bring those responsible to justice.”

Latin America is no stranger to US military interventions and regime changes. Washington sponsored covert and overt military operations in the region, from Chile to Brazil and Guatemala to Grenada, that led to regime changes in the second half of the 20th century.

So the presence of a US military submarine and guided missile cruiser close to its territorial waters has justifiably rattled Venezuela’s leadership. Maduro has called on his countrymen and women to join nationalist militias, declaring: “no empire will touch the sacred soil of Venezuela”. And Venezuela’s navy has deployed warships and drones to patrol the coastline.

The Trump administration has said little about its intentions. But most analysts agree the US is not preparing to invade Venezuela. The naval build-up is much more likely to be an attempt to get Latin American governments to take stronger action against drug traffickers.

Falling in line

Cracking down on transnational drug cartels has become a defining theme of Trump’s second presidency. Shortly after returning to office in January, he issued an executive order formally designating eight of them “foreign terrorist organisations”.

This included six organisations based in Mexico: the Cartel del Golfo, Sinaloa Cartel, Cartel de Jalisco Nueva Generacion, Carteles Unidos, La Nueva Familia Michoacana and Cartel del Noreste. It also included the Mara Salvatrucha (more commonly known as MS-13), which originated in California, and the Venezuela-based Tren de Aragua.

A White House statement at the time said: “The Cartels have engaged in a campaign of violence and terror throughout the Western Hemisphere that has not only destabilized countries with significant importance for our national interests but also flooded the United States with deadly drugs, violent criminals, and vicious gangs.”

In August, Trump then signed a secret directive ordering the Pentagon to use military force against these cartels. The US secretary of state, Marco Rubio, has gone on record defending this directive. He said on August 7 that it allows the US to “use other elements of American power, intelligence agencies, the Department of Defense, whatever … to target these groups if we have an opportunity to do it.”

There are several legal issues associated with direct US military action in Latin America, which reduce the prospect of any such assault taking place. It would violate the sovereignty of countries there, while launching strikes without congressional approval or a UN mandate would risk breaching domestic prohibitions.

For instance, there are debates over whether murder charges could be brought against US service members acting outside of a congressionally authorised armed conflict if they were to kill civilians or criminal suspects who pose no imminent threat.

Whether or not the US military is brought directly into the fight against the cartels will become clearer in the weeks and months ahead. However, there is some evidence that the mere threat of US military intervention is hardening the stance of some countries in the region towards criminal groups.

The Mexican president, Claudia Sheinbaum, for instance, has said “her government will cooperate with the US to fight drug trafficking”. To avoid any unilateral military strike against cartels that might undermine Mexican sovereignty, Sheinbaum has deployed tens of thousands of national guard troops across the country to stem the flow of drugs towards the US.

Maduro has more recently also pledged to send 15,000 Venezuelan troops to the border with Colombia. And he thanked Colombia for sending 25,000 military personnel to the border to tackle “narco-terrorist gangs”. The Colombia-Venezuela border is porous and has long been a key transit point for drug traffickers and smugglers.

Further south, in Paraguay, there is official support for Trump’s anti-cartel policies. Taking a leaf from Washington’s rule book, the Paraguayan president, Santiago Peña Palacios, has designated the Cartel of the Suns a foreign terrorist organisation.

Elsewhere in Latin America, El Salvador’s leader, Nayib Bukele, has been a trusted ally of the US in its battle against drug cartels. Bukele has been successful in curbing the power and influence of MS-13, putting most of its members behind bars in the country’s high-security prison.

El Salvador is also incarcerating kingpins and criminals deported from the US. If the increasingly focused US pressure is successful, it may be just a matter of time before all countries in Latin America fall in line with Trump’s war on drug cartels.

The Conversation

Amalendu Misra is a recipient of British Academy and Nuffield Foundation Fellowships.

ref. The US has deployed warships near Venezuela in a cartel crackdown – but direct military action is unlikely – https://theconversation.com/the-us-has-deployed-warships-near-venezuela-in-a-cartel-crackdown-but-direct-military-action-is-unlikely-264054

Parks are public spaces – but private event organisers are muscling in

Source: The Conversation – UK – By Ian Mell, Professor in Environmental & Landscape Planning, University of Manchester

Tens of thousands of fans streamed into Manchester’s Heaton Park this summer to see Oasis return home. Over 400,000 people attended across five nights of the much-hyped reunion tour.

But the joy came at a price. For more than eight weeks, large parts of Heaton Park were fenced off and heavily secured, restricting everyday use. Families, dog-walkers and runners were displaced, and the effects rippled far beyond the park gates.

The park regularly hosts food festivals and the music festival Park Life, but Oasis was of a different scale. The concerts effectively turned much of the park into a private venue, accessible only to ticket holders and staff. Residents complained of overcrowded trams, gridlocked roads and children struggling to get home from school. What is usually Manchester’s largest green space became, in some people’s minds, a no-go zone for two months.

Local governments insist such events bring much-needed revenue. Manchester City Council has not reported a specific fee for Oasis to use Heaton Park, although it has been said that around £25,000 has been allocated to fund local projects. (At time of publication, the council had not replied to our request for clarification about the fee.)

Pubs and restaurants thrived on concertgoers, and taxi drivers got a ready-made source of customers who would pay whatever it took. The city itself basked in the global spotlight of a high-profile homecoming.

Yet the downsides for locals were obvious: noise, antisocial behaviour, litter and congestion, as well as the general fatigue of not being able to go about their daily business. Afterwards, many felt the grass and grounds had been left in a poor state, raising questions of how much – if any – of the fee would be reinvested in the park itself.

This fuels scepticism: a multi-million pound tour gives the council a relatively small fee, while thousands of locals absorb the inconvenience. In my view, people are right to wonder whether public parks should be used to support these enterprises.

The Oasis shows tap into a wider debate about the use of public parks for festivals and events. Why is a space designed for community relaxation doubling up as a mega-venue? Why not use a stadium or arena purpose-built for huge crowds? And why don’t local councils charge far greater fees to permit such events, and properly enforce penalties for any damage?

Heaton Park is not unique. Sefton Park in Liverpool and Finsbury Park in London have hosted major festivals including Africa Oye and Wireless for over a decade respectively, provoking annual complaints about noise and disruption. Each time, local councils stress the economic upside, while residents question whether public green spaces are being commercialised at their expense.

Why councils say yes

In my experience, many local authorities simply feel they cannot afford to say no. Years of budget cuts mean councils must “sweat” every asset they own. Large parks, especially those with capacity for mass gatherings, are among the few resources left to monetise.

Cultural prestige also matters. Hosting a band like Oasis in their hometown generates pride and attention that no council will want to turn away.

But if parks are to be used in this way, the terms should be stronger. The reported £25,000 fee is minimal when set against the profits of a five-night run: 80,000 people paying £100 or more each over five nights adds up to around £40 million in revenue. (In fact, many people paid hundreds and even thousands of pounds to attend the Oasis gigs.)

Councils could charge significantly more, with some of the revenue ring-fenced to fund park management and improvements, and contracts that cover damage to the park.

So, did Oasis ruin Heaton Park? Not exactly. The concerts were a cultural phenomenon for Manchester and a source of joy for thousands of fans. But they also highlighted how public parks are being commercialised to plug council finances, often with limited benefit to those who most need them.

If local authorities continue to hire out green spaces to private promoters, they should rethink the terms. At the very least, residents deserve more input, and a fairer share of the rewards.

The Conversation

Ian Mell 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. Parks are public spaces – but private event organisers are muscling in – https://theconversation.com/parks-are-public-spaces-but-private-event-organisers-are-muscling-in-262063

Zack Polanski becomes Green party leader – what happens next?

Source: The Conversation – UK – By Louise Thompson, Senior Lecturer in Politics, University of Manchester

Zack Polanski is the new leader of the Green party in England and Wales after winning a leadership election promising a programme of “eco-populism”. Polanski beat incumbent leader Adrian Ramsay and his partner on the ticket, Ellie Chowns.

It’s been just over a year since the party celebrated its best ever results in the most recent general election. In July 2024, it doubled its vote share and quadrupled its representation in the House of Commons to four MPs.

The same election saw terrible results for the Conservatives and even for Labour, despite its win, raising questions about whether two-party politics was well and truly over. Since then, as professor John Curtice has vividly described, things have started to look even shakier.

This year’s local election saw a “record-breaking” fragmentation of the vote in which less than a quarter of local council seats went to the two main parties. The Greens now hold over 800 seats in more than 170 different councils, adding to their electoral portfolio – which also includes two members of the House of Lords and three London Assembly members.

While Polanski will be celebrating today, party members will look to him to raise their electoral fortunes even further. The electoral challenge for the Greens in England and Wales is two-pronged.

First, the party needs to maintain its position in the seats it has already secured. Its four MPs have fairly comfortable majorities, the smallest being Chowns’ 5,800 majority in North Herefordshire. Second, and perhaps most importantly, it needs to maximise its success in the 40 constituencies where it came second. All but one of these constituencies were won by Labour, which makes Labour voters the prime targets.

My research has shown how the Green party has followed a policy of “total engagement” in recent years. It takes its parliamentary work very seriously, using any and every opportunity to get its message across, even in lower-priority policy areas.

The goal here is to build credibility with the electorate. Small parties tend to want voters to think they are bigger than they are, so they can present themselves as realistic contenders for taking on the heavy work and responsibility of government. Caroline Lucas did a fantastic job of this, punching well above her weight as the party’s only MP between 2010 and 2024.

Together, the Green MPs have made over 380 contributions in the House of Commons. Chowns in particular has been a prolific backbencher, making 161 contributions, while the previous co-leaders Carla Denyer and Ramsay have been much quieter.

With Polanski sitting in the London Assembly rather than the House of Commons, this will inevitably change. The four Green MPs will collectively have more time on their hands and, with the right direction from their new leader, will have the space to be more strategic in their parliamentary activities.

Outsiders

But the Greens have always acted as something of an atypical party too, keeping one foot outside Westminster. Lucas was regularly involved in activism, joining protesters campaigning against tuition fee increases and fracking and to support refugees, to name just a few. She was even arrested in 2013 after joining a protest against energy firm Cuadrilla in Sussex (she was later cleared of all charges in court).

The new Green MPs have continued in this vein, with Sian Berry joining a peaceful protest against far-right agitators in Brighton last year and Chowns pressing the government to water down anti-protest laws.

The new leadership will need to decide whether this strategy enhances their electoral appeal. Does it highlight the Greens’ distinctiveness from the establishment parties, or does it imply they aren’t responsible enough to manage being a party of significant size? The answer depends on who you ask. Polanski has participated in several protests in the past, so chances are this activism will continue to be a core feature of Green party politics.

An added complication for the Greens is that two other parties are also chasing left-leaning voters. One of these is Reform UK. Although associated with rightwing views on social issues, the party came second in many Labour seats in 2024 and needs to appeal to both sides of the political spectrum.

This may explain why the Greens have focused their efforts on highlighting Reform’s failures. Berry, for instance, recently challenged Nigel Farage and his colleagues to publish a log of all their meetings since entering the Commons, arguing that it would be in the public interest.

The other outside threat is Jeremy Corbyn and Zarah Sultana’s new and currently nameless party of the left. While we know little about this party’s policy platform right now, it seems to be veering towards a similarly bottom-up democratic model of organisation which has long been favoured by the Greens – possibly even with co-leaders.

The challenge for the Greens will be to better establish their niche on the left, to ensure they capture voters who are disillusioned with Keir Starmer’s wobbly start. Part of the solution could be to focus on a handful of key policy areas which go beyond the Green party’s niche of environmental issues. At the moment, its MPs take something of a scattergun approach in the Commons, contributing on everything from local buses and universal credit to Ukraine and the Middle East.

Some of the most recent questions asked during Prime Minister’s Questions by Greens hint at the options they might pursue. Ramsay has pushed for a wealth tax on the super rich, and an end to the two-child benefit cap. Both Corbyn and Sultana have, of course, been outspoken on these issues in the past.

If the Greens can’t forge a different path to this new left party, they may have no choice but to consider an electoral pact to avoid splitting the anti-Labour vote right down the middle.

The Conversation

Louise Thompson has previously received funding from the ESRC for research on small political parties.

ref. Zack Polanski becomes Green party leader – what happens next? – https://theconversation.com/zack-polanski-becomes-green-party-leader-what-happens-next-262846

À la ménopause, savez-vous que le risque cardiovasculaire augmente ? L’activité physique peut aider

Source: The Conversation – France in French (3) – By Carina Enea, Maitresse de Conférences en physiologie de l’exercice – Faculté des Sciences du Sport, Université de Poitiers

La ménopause représente une période critique à partir de laquelle le risque cardiovasculaire (AVC, infarctus du myocarde…) augmente. Mais beaucoup de femmes l’ignorent. En prévention, une activité physique régulière peut se révéler bénéfique.


En France, les maladies cardiovasculaires représentent la première cause de mortalité chez les femmes, bien loin devant le cancer du sein.

Chaque année, elles emportent plus de 75 000 femmes, les décès par accidents vasculaires cérébraux (AVC) étant les plus fréquents. Pourtant, ces risques demeurent largement sous-estimés, tant par les femmes elles-mêmes que par une partie du corps médical.

L’une des périodes les plus critiques dans l’évolution du risque cardiovasculaire chez les femmes est la périménopause (période pendant laquelle les règles commencent à devenir irrégulières), ainsi que les années qui suivent la ménopause (arrêt des règles depuis plus de douze mois) et que l’on nomme « postménopause ».

Périménopause et postménopause, fenêtres de vulnérabilité cardiométabolique majeure

Trop souvent réduites à leurs symptômes les plus connus (bouffées de chaleur, troubles du sommeil, irritabilité), ces périodes sont en réalité des fenêtres de vulnérabilité cardiométabolique majeure pour les femmes.

En effet, les œstrogènes (hormones principalement produites par les ovaires) ont un effet protecteur sur le système cardiovasculaire et leur déclin progressif dès la périménopause impacte directement la santé cardiovasculaire. Conséquence : la pression artérielle tend à s’élever, le profil lipidique se détériore, la résistance à l’insuline (une hormone impliquée dans la régulation de la glycémie, ndlr) augmente, et la graisse abdominale s’installe plus facilement.

Autant de changements défavorables qui augmentent à moyen terme le risque d’événements cardiovasculaires chez les femmes.

Malgré l’importance du sujet, les femmes restent encore aujourd’hui sous-représentées dans les études cliniques portant sur les maladies cardiovasculaires et cérébrovasculaires. Ainsi, selon une étude récente publiée dans la revue scientifique Neurology, les femmes ne représentent qu’un tiers des participants dans les essais cliniques sur les AVC, ce qui limite la compréhension de cette pathologie chez elles et l’efficacité des stratégies de prévention et de traitement.

Le dispositif « Mon bilan prévention » à partir de 45 ans

La prévention du risque cardiovasculaire chez les femmes reste encore trop souvent tardive, alors que la ménopause devrait constituer un moment clé pour effectuer un bilan de santé global.

Ce besoin a, d’ailleurs, été souligné dans le Plan interministériel pour l’égalité entre les femmes et les hommes 2023-2027 qui intègre, pour la première fois, un objectif spécifique de prévention cardiovasculaire féminine, notamment à travers l’initiative « Mon bilan prévention ». Ce dispositif, destiné aux femmes à partir de 45 ans, viserait à détecter précocement les facteurs de risque cardiovasculaire, en tenant compte des spécificités liées au sexe et à l’âge.

C’est également une des propositions phares du rapport de la mission parlementaire sur la ménopause en France, publié en avril 2025, qui recommande explicitement d’inscrire la ménopause comme un moment stratégique pour renforcer la prévention cardiométabolique chez les femmes.

Des outils conçus pour les hommes, qui sous-évaluent le risque des femmes

Néanmoins, les outils actuellement utilisés pour estimer le risque cardiovasculaire reposent majoritairement sur des cohortes masculines. Ils ne prennent pas suffisamment en compte des facteurs spécifiques aux femmes, tels que la ménopause précoce, les symptômes vasomoteurs sévères (bouffées de chaleur, sueurs nocturnes), ou encore certains antécédents obstétricaux (prééclampsie, diabète gestationnel) ou gynécologiques (endométriose, syndrome des ovaires polykystiques).




À lire aussi :
Syndrome des ovaires polykystiques SOPK : une piste impliquant l’hormone œstradiol pour mieux comprendre cette maladie


Plus grave, les femmes sont plus sensibles que les hommes à plusieurs facteurs de risque traditionnels, comme l’hypertension artérielle, le diabète ou le tabagisme. Ces biais de conception des outils d’évaluation mènent à une sous-estimation du risque réel chez les femmes, ce qui peut entraîner des retards de diagnostic et de prise en charge.

Une récente initiative française, les « Bus du cœur des femmes », a d’ailleurs proposé un dépistage gratuit auprès de 4 300 femmes (âge médian : 54 ans), issues de 20 villes françaises, en prenant en compte ces différents facteurs de risque.

Les données récoltées montrent que plus de 70 % d’entre elles n’avaient jamais eu de consultation de prévention du risque cardiovasculaire au préalable, alors que 90,2 % présentaient au moins deux facteurs de risque cardiométabolique et 48,9 % des antécédents obstétricaux et/ou gynécologiques.

L’exercice physique : une intervention non médicamenteuse aux multiples bénéfices

En prévention, l’activité physique régulière peut se révéler extrêmement précieuse si elle est pratiquée conformément aux recommandations (cf. l’infographie de l’Observatoire national de l’activité physique et de la sédentarité [Onaps], ci-dessous).

Ses bénéfices sont multiples : amélioration de la composition corporelle (augmentation de la masse musculaire, réduction de la graisse abdominale), optimisation du profil lipidique sanguin, diminution de l’inflammation chronique de bas grade (mécanisme physiopathologique intracellulaire qui se développe à bas bruit, ndlr) et soutien à la santé mentale, notamment par la réduction des symptômes anxieux et dépressifs.

Nos travaux de recherche ont ainsi montré que les femmes ménopausées très actives physiquement n’ont pas de marqueurs de santé cardiométabolique altérés, contrairement à ce qui est généralement observé chez les femmes inactives (qui ne respectent pas les recommandations). Par ailleurs, certaines études suggèrent que l’activité physique régulière pourrait également atténuer les symptômes vasomoteurs, tels que les bouffées de chaleur ou les sueurs nocturnes, bien que ces effets restent à confirmer par des recherches complémentaires.

Les bénéfices du renforcement musculaire

Au sein du laboratoire Mobilité, vieillissement et exercice, nous avons également cherché à déterminer les modalités d’exercice les plus efficaces pour préserver la santé cardiovasculaire et les performances cognitives. Nos résultats indiquent que les exercices de renforcement musculaire, comme le gainage, la méthode Pilates ou les séances de type cuisses-abdos-fessiers, s’avèrent particulièrement bénéfiques pour la régulation de la pression artérielle, plus encore que les activités (dites « d’endurance ») qui sollicitent davantage le système cardiorespiratoire, comme la course à pied ou le vélo.

Les exercices de renforcement musculaire permettent notamment une réduction significative de la pression artérielle nocturne, un facteur de protection reconnu contre les événements cardiovasculaires.

Sur le plan cognitif, si l’effet immédiat de l’exercice sur les performances est relativement limité, nos données révèlent une augmentation de l’oxygénation du cortex préfrontal, une région clé pour la mémoire, l’attention et les fonctions exécutives. Cet effet est d’autant plus marqué chez les femmes présentant une bonne condition cardiorespiratoire, ce qui souligne l’importance d’un entraînement régulier et bien ciblé pour préserver la santé cérébrale à cette étape de la vie.

Ainsi, chez les femmes très actives (c’est-à-dire qui dépassent les recommandations), la ménopause ne s’accompagne pas d’une baisse des performances cognitives globales.

Prendre en compte les symptômes pour mieux prescrire l’activité physique

Autre enseignement important de ces études : les femmes présentant des symptômes vasomoteurs modérés à sévères tireraient un bénéfice accru de l’activité physique et notamment des exercices de renforcement musculaire. En effet, leur pression artérielle nocturne baisse de façon plus marquée après ce type d’exercices.

De plus, ces femmes ont tendance à moins pratiquer d’activité physique de loisir que celles dont les symptômes sont légers ou absents, un constat qui renforce la nécessité d’un accompagnement ciblé.

Vers une médecine préventive adaptée aux femmes

Nos résultats soulignent l’importance de repenser la prévention cardiovasculaire chez les femmes à la ménopause : elle ne peut plus se limiter à des messages généraux. Il s’agit d’intégrer pleinement l’activité physique comme un outil thérapeutique à part entière, avec une prescription adaptée au statut hormonal, mais également au profil symptomatique de chaque femme.

La ménopause ne devrait plus être considérée comme une étape dite « hormonale », mais comme une chance unique de prévention et de dépistage du risque cardiovasculaire des femmes.

L’exercice physique, simple, efficace et accessible, pourrait en être le pilier.


Pour aller plus loin :
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The Conversation

Carina ENEA a reçu des financements de l’Université de Poitiers (financement UP-SQUARED), de la Chaire Sport Santé de l’Université de Poitiers et de la Région Nouvelle Aquitaine.

Morgane Le Bourvellec a reçu des financements de la Chaire Sport Santé de l’Université de Poitiers et de La Région Nouvelle Aquitaine.

Nathalie Delpech a reçu des financements de la Chaire Sport Santé de l’Université de Poitiers et de la Région Nouvelle-Aquitaine

ref. À la ménopause, savez-vous que le risque cardiovasculaire augmente ? L’activité physique peut aider – https://theconversation.com/a-la-menopause-savez-vous-que-le-risque-cardiovasculaire-augmente-lactivite-physique-peut-aider-263379

¿Por qué ha sido tan mortífero el terremoto de Afganistán?

Source: The Conversation – (in Spanish) – By Iftekhar Ahmed, Associate Professor in Construction Management/Disaster Resilience, University of Newcastle

Wakil Kohsar/AFP via Getty images

El número de víctimas mortales tras el reciente terremoto en Afganistán sigue aumentando. Las autoridades sanitarias lideradas por los talibanes afirman ahora que al menos 800 personas han perdido la vida y 2 000 han resultado heridas.

El terremoto se produjo poco antes de la medianoche del domingo en una región montañosa cerca de la ciudad de Jalalabad, junto a la frontera oriental con Pakistán. Tuvo una magnitud relativamente baja, de 6,0. Sin embargo, su epicentro fue poco profundo, a 8 kilómetros bajo tierra, lo que provocó fuertes sacudidas en la superficie y una serie de réplicas.

La mayoría de las víctimas dormía en sus casas en el momento del terremoto y quedó sepultada por el derrumbe de los edificios. Debido a la lejanía de las zonas afectadas y al bloqueo de las redes de carreteras por los deslizamientos de tierra provocados por el terremoto, es posible que se tarde mucho tiempo en conocer el número exacto de fallecidos.

Una región propensa a los terremotos

Las montañas del Himalaya y el Hindu Kush, y sus estribaciones, donde se encuentra la zona afectada en Afganistán, son sísmicamente activas debido a la fricción continua entre las placas tectónicas euroasiática e india.

Esto ha provocado algunos de los terremotos más devastadores de la región, como el de Gorkha de 2015 en Nepal y el de Cachemira de 2005 en Pakistán.

Afganistán también sufre una buena cantidad de seísmos, especialmente en la región actualmente afectada. En octubre de 2023, un terremoto mató a más de 1 500 personas. El año anterior, más de mil personas murieron a causa de otro de estos eventos.

El terremoto de 2011 en Christchurch, Nueva Zelanda, fue de una magnitud similar y se produjo a una profundidad menor que el más reciente en Afganistán. Sin embargo, a pesar de que afectó a una ciudad densamente poblada, solo murieron 185 personas.

Los cientos de fallecidos en aldeas rurales dispersas de Afganistán presentan un marcado contraste.

Los terremotos no matan a las personas, los edificios sí

Una frase muy citada, “los terremotos no matan a las personas, los edificios sí”, ayuda a comprender los factores que contribuyen al elevado número de víctimas mortales causado por este terremoto y otros anteriores en Afganistán.

Las comunidades rurales no pueden permitirse materiales de construcción resistentes y manufacturados. Por ello, construyen sus viviendas con materiales naturales disponibles en la zona, como tierra, piedra y madera en bruto.

Estos edificios no siguen los diseños de ingeniería, los códigos de construcción ni las normas profesionales formales que evitan que se produzcan daños sustanciales en los países más ricos.

Una forma típica de construcción en las zonas rurales afganas son las paredes hechas de ladrillos de barro o mampostería de piedra. Esto se conoce como construcción “monolítica”.

Este tipo de edificación no es capaz de resistir los fuertes movimientos laterales causados por un terremoto. Como resultado, los edificios se derrumban fácilmente y aplastan a las personas. Informes de aparición de escombros donde antes había edificios están surgiendo ampliamente en Afganistán, como también ocurrió en seísmos anteriores.

Un detonante para el cambio en el diseño

Los ejemplos de otros países de la región demuestran que se puede lograr un mejor nivel de diseño de edificios resistentes a los terremotos en condiciones socioeconómicas similares.

Después del seísmo de Cachemira de 2005 en Pakistán, el Gobierno creó la Autoridad para la Reconstrucción y Rehabilitación tras el Terremoto, que ayudó a las personas afectadas a construir viviendas más seguras mediante un programa comunitario respaldado por orientación técnica.

En Nepal, tras los terremotos de Gorkha de 2015, el Gobierno estableció las normas mínimas de su Código Nacional de Construcción, que permiten que las reglas generales cumplan con un nivel básico de resistencia a los terremotos.

Hace más de 25 años, el ingeniero indio Anand Arya, pionero en su enfoque para reducir el riesgo sísmico en edificios “no diseñados”, incorporó la suma de bandas continuas en las paredes y refuerzos en las esquinas de un edificio y a lo largo de puertas y ventanas, lo que puede proporcionar resistencia a los edificios tradicionales de mampostería.

Estos ejemplos demuestran que no siempre se necesita mucho dinero para mejorar la resistencia a los terremotos. Un cierto grado de apoyo técnico e institucional puede lograr la seguridad de manera rentable.

Es cierto que estos edificios no estarían totalmente a prueba de terremotos. Sin embargo, seguirían aportando un nivel de resistencia que podría reducir los daños y, lo que es más importante, salvar vidas.

Cabe esperar que el seísmo afgano sea el detonante de una iniciativa de este tipo en el país, de modo que un proceso de “reconstrucción mejorada” pueda ayudar a las comunidades afectadas a ser más resilientes ante futuros movimientos de tierra.

The Conversation

Iftekhar Ahmed no recibe salario, ni ejerce labores de consultoría, ni posee acciones, ni recibe financiación de ninguna compañía u organización que pueda obtener beneficio de este artículo, y ha declarado carecer de vínculos relevantes más allá del cargo académico citado.

ref. ¿Por qué ha sido tan mortífero el terremoto de Afganistán? – https://theconversation.com/por-que-ha-sido-tan-mortifero-el-terremoto-de-afganistan-264376

Qué es lo extraño en 3I/ATLAS, el objeto interestelar más observado del mundo

Source: The Conversation – (in Spanish) – By Josep M. Trigo Rodríguez, Investigador Principal del Grupo de Meteoritos, Cuerpos Menores y Ciencias Planetarias, Instituto de Ciencias del Espacio (ICE – CSIC)

Vista superior de la Vía Láctea que muestra las órbitas del Sol (líneas punteadas amarillas) y la del cometa 3I/ATLAS (líneas discontinuas rojas). M. Hopkins/Ōtautahi-Oxford team ESA/Gaia/DPAC, CC BY-SA

Mucho se ha escrito en prensa durante las últimas semanas del cometa 3I/ATLAS, sobre la supuesta incertidumbre en su naturaleza. El seguimiento realizado con todo tipo de instrumentación lo convierten en el objeto interestelar mejor observado hasta la fecha. Y, pese a las muchas elucubraciones vertidas, tanto las imágenes como los espectros de reflexión apuntan claramente a su naturaleza cometaria. No es en ningún caso un extravagante objeto desconocido para la ciencia.

De hecho, nuestro grupo de investigación sobre Asteroides, Cometas y Meteoritos en el ICE-CSIC/IEEC le ha seguido la pista desde los primeros días, midiendo su posición y obteniendo precisas medidas fotométricas. Ya en imágenes obtenidas el 5 de julio con el Telescopio Robótico Joan Oró podía apreciarse su coma, característica de los cometas.

Más parecido a un asteroide que a un cometa

En un nuevo trabajo, liderado por la profesora Bin Yang de la Universidad Diego Portales de Chile, publicado en ArXiv, se ha empleado instrumentación puntera en los telescopios Gemini-S/GMOS y NASA IRTF/SpeX. Los días 5 y 14 de julio de 2025 obtuvieron espectros del objeto tras su descubrimiento, tanto en la banda visible como en el infrarrojo cercano.

Esas observaciones se realizaron al poco de ser detectado, evitando así que la actividad del cometa asociada a la sublimación de hielos apantallase otros aspectos de su naturaleza.

Sin espacio para la duda, ambos espectros apuntan a que el objeto interestelar es un cometa.

En el rango óptico, 3I/ATLAS muestra una pendiente enrojecida que lo asemeja al de ciertos asteroides de nuestro sistema solar de clase espectral D. Se trata de asteroides muy oscuros (albedo bajo), con un espectro muy rojo y una composición rica en carbono. Son raros y tienen poca reflectividad.

El espectro en la ventana del infrarrojo cercano de 3I/ATLAS se aplana significativamente, aproximadamente a una tasa de 0.9 a 1.5 micrones, similar al comportamiento espectral de grandes granos de hielo de agua en la coma de los cometas.

Los autores del trabajo, entre los que se encuentra la prestigiosa astrobióloga Karen J. Meech, modelaron el comportamiento espectral del cometa 3I/ATLAS. Emplearon una mezcla de polvo al 70 % del del meteorito (condrita carbonácea) Tagish Lake y un 30 % de hielo de agua con un tamaño medio de 10 micras. De hecho, esa fracción de hielo del ~30% obtenida podría interpretarse como una estimación aproximada de la composición de la coma.

En general, todos los estudios y observaciones realizadas hasta la fecha apuntan a que es un cometa interestelar activo que contiene abundante hielo de agua, con una composición de polvo más similar a la de los asteroides tipo D que a la de los objetos transneptunianos. Esto podría ser consistente con la idea de que se formase en una región interior de un sistema planetario, siendo expulsado por un tirón gravitacional experimentado en su encuentro con un planeta. En cualquier caso los escenarios permanecen abiertos pues cabrá esperar a las observaciones que realicen diversas sondas espaciales del intruso, siendo la misión Psyche de la NASA la major situada.

La coma del cometa 3I/ATLAS

También se ha especulado con la idea de que el 3I/ATLAS no presenta una coma extendida como otros cometas, pero esa idea es falsa. Básicamente, siendo un objeto cuyo diámetro es de pocos kilómetros, no lo hubiéramos descubierto sin haber presentado esa envoltura que llamamos coma y que lo hace visible a miles de millones de kilómetros.

La coma posee una composición que sería representativa del material sublimado pero quizás no del interior mismo del objeto. La componente gaseosa de la coma está dominada por dióxido de carbono, produciendo una envoltura de unos 350.000 km alrededor del núcleo cometario.

Dicha envoltura además del gas contiene partículas de polvo de tamaño micrométrico que se desprenden del cometa debido a la sublimación de los hielos. El polvo está embebido entre los materiales helados que son calentados en su acercamiento al Sol. En el caso de un cometa interestelar deberíamos esperar un manto irradiado por rayos cósmicos a lo largo de los miles de millones de años que lleva circulando por la Vía Láctea. Quizás por esa razón su actividad cometaria aparezca aletargada y restringida en volátiles.

Las observaciones infrarrojas muestran que la componente sólida de la coma, desprendida por la presión hacia afuera del gas sublimado aparece dominada por pequeñas partículas de hielo de agua y polvo que se asemeja a una clase de meteorito asociado a las condritas carbonáceas, procedentes de un tipo de objetos llamados transicionales: a mitad de camino entre un asteroide y un cometa.

Así pues 3I/ATLAS no tiene nada de extraño, salvo que se trata de un material que nos resulta familiar pese a haberse formado necesariamente en un lejano sistema planetario.

The Conversation

Josep M. Trigo Rodríguez recibe fondos del proyecto del Plan Nacional de Astronomía y Astrofísica PID2021-128062NB-I00 financiado por el MICINN y la Agencia Estatal de Investigación.

ref. Qué es lo extraño en 3I/ATLAS, el objeto interestelar más observado del mundo – https://theconversation.com/que-es-lo-extrano-en-3i-atlas-el-objeto-interestelar-mas-observado-del-mundo-264219

Donald Trump was once India’s best friend. How did it all go wrong?

Source: The Conversation – Global Perspectives – By Ian Hall, Professor of International Relations, Griffith University

Just months into President Donald Trump’s second term in office, one of the United States’ most important strategic partnerships is in crisis.

Relations between the US and India are at their lowest ebb in a quarter of a century. Things are so bad that Indian Prime Minister Narendra Modi has reportedly refused to accept calls from Trump for more than two months.

In recent days, Trump labelled trade ties with India a “totally one-sided disaster” and a report emerged that he is no longer planning to visit India later this year for a summit of the Quad partners (India, the US, Australia and Japan).

So bad, so quickly

Things were not meant to happen this way. Many in New Delhi were delighted when Trump won the election last year. Modi congratulated his “friend” on X, along with pictures of the two embracing and holding hands.

India’s foreign minister, S. Jaishankar, told journalists that while other countries might be “nervous” about Trump’s return, India was not.

Feeling confident, Modi went to Washington to meet Trump days after his return to office. The encounter did not go well.

On the eve of the meeting, Modi was embarrassed by distressing images of Indian nationals, handcuffed and shackled, being deported from the US on a military aircraft.

In the Oval Office, he promised to buy more US arms, oil and gas, and asked that Trump not impose punitive tariffs on India. Modi failed to get that commitment.

A few weeks later, Trump announced India would be hit with a 27% tariff – far higher than the 10% imposed on China – unless it could negotiate something better.

Crisis in Kashmir

Begrudgingly, New Delhi began to talk trade. US Vice President JD Vance visited India in late April and both sides made positive noises about a deal. But while Vance was in town, India was engulfed in a new crisis.

On April 22, terrorists killed 26 people – mostly Hindu tourists – in Kashmir, long the site of simmering conflict between India and Pakistan. The Modi government pledged to respond with force, as it had done in the past after similar incidents.

On May 7, India bombed what it claimed were militant camps in Pakistan and Pakistan-administered Kashmir. A rapidly escalating, unpredictable conflict followed, as both sides used drones and missiles to attack one another.

Alarmed, governments around the world urged the two nuclear-armed states to end hostilities before matters got out of control. Early in the morning on May 10, they did, and agreed to a ceasefire.

Trump anoints himself peacemaker

Before either the Indian or Pakistani governments had a chance to say anything, Trump stepped in to take credit.

On social media, he announced both sides had agreed a deal. The next day he claimed they would soon sit down with him as mediator and find a solution to the Kashmir conflict.

Islamabad was jubilant at this outcome. New Delhi, meanwhile, was furious.

India’s longstanding view is that the Kashmir dispute must be settled bilaterally, without third-party involvement. The US has accepted this position for more than 20 years. Now it appeared Trump was taking a different view.

This put Modi in a bind. Keen to maintain a mutually beneficial partnership and avoid punitive tariffs, he did not wish to upset Trump.

But he could not acknowledge Trump’s claims without setting aside a fundamental principle of Indian policy. So, Modi called Washington and explained he would not accept mediation over Kashmir.

The final straw

Meanwhile, Pakistan saw an opportunity to win favour in Washington and drive a wedge between the US and India.

Recognising that Trump covets a Nobel Peace Prize, Islamabad nominated him for his supposed role in ending the conflict.

Enthused, Trump called Modi on June 17 and asked him to do the same. Worse still, Trump requested Modi stop in Washington on the way back from the G7 summit in Canada, and meet with Pakistan’s military chief, Asim Munir.

According to a recent report, that was the final straw for Modi. He flatly refused both requests. The two men reportedly haven’t spoken since.

Piqued, Trump responded by punishing India for continuing to buy Russian oil by lifting its tariff rate to 50% and postponing trade talks.

New Delhi’s dilemma

Trump’s actions have ordinary Indians seething and demanding action, but the Modi government does not have good options.

Giving in to coercion would make Modi – dubbed by political opponents “Narender Surrender” – look weak. Yet, no other major power can offer India what it needs in terms of markets, investment, technology, weapons and diplomatic support.

With US-India relations strained, New Delhi has been working hard to stabilise its relationship with China, which has been tense since bloody border clashes between the two in 2020.

Modi went to China for the first time in seven years on August 31 to further that aim, shaking hands with President Xi Jinping. But although Xi emphasised the need for amicable ties – he said the “elephant and dragon should dance together” – there is little trust between India and China at present.

Modi has more faith in Russia. In China, Modi and Russian President Vladimir Putin reportedly spoke for nearly an hour in Putin’s limousine. And Modi will host the Russian leader for more talks in India later this year. However, Russia remains a pariah in Europe, with limited means to help.

Other countries, like Japan, where Modi stopped off on his way to China, could also help India navigate the current crisis. But they do not have the clout to resolve it.

Unless Modi can find a way to win Trump back, India’s next few years could be very difficult.

The Conversation

Ian Hall has received funding from the Australian Research Council, Department of Defence, and Ministry of Foreign Affairs of Japan. He is an honorary Academic Fellow of the Australia India Institute.

ref. Donald Trump was once India’s best friend. How did it all go wrong? – https://theconversation.com/donald-trump-was-once-indias-best-friend-how-did-it-all-go-wrong-264272

80 years since the end of World War II, a dangerous legacy lingers in the Pacific

Source: The Conversation – Global Perspectives – By Stacey Pizzino, Lecturer, School of Public Health, The University of Queensland

Aerial view of Enewetak Atoll showing nuclear test craters. Gallo Images/Orbital Horizon/Copernicus Sentinel Data 2021

On September 2, 1945, the second world war ended when Japan officially surrendered. Today, on the 80th anniversary, the physical legacy of the conflict remains etched into land and sea.

Nowhere is this more evident than in the Pacific. There, fierce battles left behind sunken warships, aircraft and unexploded bombs. These remnants are not only historical artefacts but toxic time capsules.

They leak fuel, heavy metals and other hazardous substances into fragile ecosystems, threatening biodiversity and, potentially, human health.

This problem is a reminder of the enduring environmental harms of conflict. Toxic remnants of war can damage ecosystems and communities long after the fighting stops.

The Pacific as a dumping ground

World War II in the Pacific involved four years of conflict between Japan and Allied forces. The war began in the region in December 1941 when Japan attacked a United States naval base at Pearl Harbour, Hawaii.

The Pacific conflict included the Battle of the Coral Sea, the Battle of Midway and the Guadalcanal campaign in the Solomon Islands.

Pacific islands became staging grounds for battles. Weapons were stockpiled and hazardous material discarded. Ships and aircraft were sunk. When the war ended, much of this material was simply left behind.

Among the remains are an estimated 3,800 wrecks still lying on the Pacific Ocean floor.

An environmental hazard

As remnants of war degrade, they often leach toxic pollutants into nearby waters and soils. These can build up in marine life, enter the food chain and pose serious risks to both biodiversity.

At Palau, a WWII Japanese ship sank in Koror Harbour and became known as the Helmet Wreck. It contains Japanese depth charges leaking acid into surrounding waters.

Researchers have shown the long-term environmental impacts in the Baltic Sea of unexploded WWII ordnance – bombs, shells and grenades that failed to detonate. An estimated 3000kg of dissolved ammunition chemicals have been found.

Coral reefs and mangroves, which are vital for coastal protection, are especially vulnerable to both chemical exposure and physical damage.

For example, researchers examined the effects off Puerto Rico of unexploded ordnance. They found nearby sea animals contained potentially toxic compounds leaking from the ordnance, which meant the substances had entered the food web.

Human communities on high alert

Unexploded ordnance continues to endanger communities. Just last year, for example, more than 200 bombs were found buried beneath a school in the Solomon Islands.

In places such as Palau, Papua New Guinea and the Solomon Islands, these dangers are unearthed regularly. They can be found by farmers working their land, children playing or fisherman working.

Buried bombs, sunken ships and downed aircraft often contain fuel and heavy metals. This includes lead and cadmium which can interfere with the body’s hormone system and cause serious health issues.

Research into the human health impacts of war remains is limited – especially in the Pacific. But existing studies suggest exposure is linked to serious consequences.

For example, parental exposure to wartime contaminants has been linked to birth defects in Gaza and Vietnam.

And a study of Britsh Army ammunition technicians released earlier this year found significantly higher rates of bladder cancer than the general population. This suggests occupational exposure to explosive compounds may pose long-term health risks.

Climate change is increasing the risk

As Earth’s climate warms, extreme weather events are worsening and seas are rising. This is exacerbating the dangers posed by wartime remnants.

For example Cyclone Pam, in March 2015, exposed unexploded WWII ordnance in Kiribati and Tuvalu. Further investigations revealed remnants including high explosive projectiles, mortars and 5,300 rounds of ammunition.

In 2020, a visiting fisherman found an unexploded bomb near Lord Howe Island. Then-Environment Minister Sussan Ley suggested the device may have been shifted by a cyclone or ocean currents.

Similarly, floods and landslides can move these hazards over significant distances, increasing uncertainty around their locations and complicating clearance efforts.

Rising sea levels are threatening to breach one of the Pacific’s most toxic legacies – the Runit Dome in the Marshall Islands. This concrete structure was built in the late 1970s to contain radioactive waste from US nuclear testing decades earlier.

Research shows extreme storms could increase radioactive sediments in the area to up to 84 times higher than normal. There are also concerns cracks in the dome’s surface could lead to contamination of surrounding waters.

Five people in yellow protective clothing stand near the water.
In this 1978 photo from Runit Island, military personnel in protective clothing watch as concrete and soil is used to cover up a crater left by the US after it conducted nuclear tests decades earlier.
Department of Defense/US Army/FPG/Archive Photos/Getty Images

Reflecting on war’s toxic legacy

Despite the risks to people and health in the Pacific, remediation has been slow. The 80th anniversary of WWII offers an opportunity to reflect on the toxic legacy of war – and to act.

The scale of the problem demands coordinated, well-funded action. The work should not just remove dangerous materials, but restore damaged ecosystems and monitor long-term health impacts.

Some support has been offered. It includes Operation Render Safe, a program to remove war remnants led by the Australian Defence Force. But more is needed.

Regional partners – including Australia, New Zealand, Japan and the United States – have a chance to lead. This means investing in environmental cleanup, supporting affected communities and acknowledging historical responsibility.

It also means listening to Pacific voices, who have long called for greater attention to the war’s toxic legacy. Their knowledge, resilience and lived experience must be central to any response.


The authors acknowledge Nixon Panda for his contribution to this article.

The Conversation

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

ref. 80 years since the end of World War II, a dangerous legacy lingers in the Pacific – https://theconversation.com/80-years-since-the-end-of-world-war-ii-a-dangerous-legacy-lingers-in-the-pacific-264127