Gwada-negative: the rarest blood group on Earth

Source: The Conversation – UK – By Martin L. Olsson, Medical Director of the Nordic Reference Laboratory for Blood Group Genomics, Region Skåne & Professor of Transfusion Medicine, Head of the Division, Lund University

Peter Porrini/Shutterstock.com

In a routine blood test that turned extraordinary, French scientists have identified the world’s newest and rarest blood group. The sole known carrier is a woman from Guadeloupe whose blood is so unique that doctors couldn’t find a single compatible donor.

The discovery of the 48th recognised blood group, called “Gwada-negative”, began when the woman’s blood plasma reacted against every potential donor sample tested, including those from her own siblings. Consequently, it was impossible to find a suitable blood donor for her.

Most people know their blood type – A, B, AB or O – along with whether they are Rh-positive or negative. But these familiar categories (those letters plus “positive” or “negative”) represent just two of several dozens of blood group systems that determine compatibility for transfusions. Each system reflects subtle but crucial differences in the proteins and sugars coating our red blood cells.

To solve the mystery of the Guadeloupian woman’s incompatible blood, scientists turned to cutting-edge genetic analysis. Using whole exome sequencing – a technique that examines all 20,000-plus human genes – they discovered a mutation in a gene called PIGZ.

This gene produces an enzyme responsible for adding a specific sugar to an important molecule on cell membranes. The missing sugar changes the structure of a molecule on the surface of red blood cells. This change creates a new antigen – a key feature that defines a blood group – resulting in an entirely new classification: Gwada-positive (having the antigen) or -negative (lacking it).

Using gene editing technology, the team confirmed their discovery by recreating the mutation in a lab. So red blood cells from all blood donors tested are Gwada-positive and the Guadeloupean patient is the only known Gwada-negative person on the planet.

The implications of the discovery extend beyond blood transfusions. The patient suffers from mild intellectual disability, and tragically, she lost two babies at birth – outcomes that may be connected to her rare genetic mutation.

The enzyme produced by the PIGZ gene operates at the final stage of building a complex molecule called GPI (glycosylphosphatidylinositol). Previous research has shown that people with defects in other enzymes needed for GPI assembly can experience neurological problems ranging from developmental delays to seizures. Stillbirths are also common among women with these inherited disorders.

Although the Caribbean patient is the only person in the world so far with this rare blood type, neurological conditions including developmental delay, intellectual disability and seizures have been noted in other people with defects in enzymes needed earlier in the GPI assembly line.

The Gwada discovery highlights both the marvels and challenges of human genetic diversity. Blood groups evolved partly as protection against infectious diseases (many bacteria, viruses and parasites use blood group molecules as entry points into cells). This means your blood type can influence your susceptibility to certain diseases.

But extreme rarity creates medical dilemmas. The French researchers acknowledge they cannot predict what would happen if Gwada-incompatible blood were transfused into the Guadeloupian woman. Even if other Gwada-negative people exist, they would be extremely difficult to locate. It is also unclear if they can become blood donors.

This reality points towards a futuristic solution: lab-grown blood cells. Scientists are already working on growing red blood cells from stem cells that could be genetically modified to match ultra-rare blood types. In the case of Gwada, researchers could artificially create Gwada-negative red blood cells by mutating the PIGZ gene.

Gwada is a colloquial term for Guadeloupe, a Caribbean island.
Shutterstock.com

A growing field

Gwada joins 47 other blood group systems recognised by the International Society of Blood Transfusion. Like most of these blood-group systems, it was discovered in a hospital lab where technicians were trying to find compatible blood for a patient.

The name reflects the case’s Caribbean roots: Gwada is slang for someone from Guadeloupe, giving this blood group both scientific relevance and cultural resonance.

As genetic sequencing becomes more advanced and widely used, researchers expect to uncover more rare blood types. Each discovery expands our understanding of human variation and raises fresh challenges for transfusion and other types of personalised medicine.

The Conversation

Martin L Olsson is a Wallenberg Clinical Scholar who receives research funding from Knut and Alice Wallenberg Foundation (grant no. 2020.0234). He holds other major grants from the Swedish Research Council (grant no. 2024-03772), the Novo Nordisk Foundation (grant no. NNF22OC0077684) and the Swedish government funds to university healthcare for clinical research (ALF grant no. 2022.0287). He is also a member of the International Society of Blood Transfusion (ISBT)’s Working Party on Red Cell Immunogenetics and Blood Group Terminology.

Jill Storry receives funding from the Swedish Research Council (grant no. 2024-03772). She is affiliated with, and the current senior Vice-President, of the International Society of Blood Transfusion, as well as a member of the society’s Working Party on Red Cell Immunogenetics and Blood Group Terminology.

ref. Gwada-negative: the rarest blood group on Earth – https://theconversation.com/gwada-negative-the-rarest-blood-group-on-earth-260155

The Story of a Heart by Rachel Clarke is a powerful account of one child’s gift to another

Source: The Conversation – UK – By Leah McLaughlin, Research Fellow in Health Services, Bangor University

What does it mean to save a life – and what does it cost? In The Story of a Heart, Rachel Clarke answers this not with slogans or sentiment, but with quiet, searing honesty. This book, which won this year’s Women’s prize for non-fiction, is about organ donation, yes, but it’s also about family, grief, love, courage, and the astonishing edges of human experience.

At its centre are two children: Max Johnson, a healthy, active nine-year-old whose heart suddenly begins to fail, and Keira Ball, another nine-year-old – vibrant, horse-loving, full of life who tragically dies in a car accident. In a moment of unimaginable grief, Keira’s parents donate her organs. Her heart goes to Max.

A child dies. A child lives.

That is the simple, brutal, beautiful truth this book never looks away from. But Clarke does more than tell the story of heart. She immerses us in it – every breath, every monitor beep, every unbearable choice.

I read this as a health services researcher who has spent years working in the emotionally complex, ethically charged, and often hidden world of organ donation. My work explores how families navigate these unimaginable scenarios, particularly in the context of recent legislative change. Clarke’s account captures, with rare precision and compassion, the silences, the emotional labour of clinicians, and the profound weight of choice that families like Keira’s carry.


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As both a doctor and a mother, Clarke brings sensitivity to every page. We feel Max’s steady decline: the exhaustion, the fear, the silence that descends as even the doctors grow unsure. We witness Keira’s final hours, the heroic efforts to save her, and the moments where unbearable grief oscillates between hope and despair, eventually giving way to a different kind of gift.

There are no easy heroes in this story, only ordinary people facing the unthinkable with extraordinary grace. Clarke brings them to life with aching clarity: the cardiologist who, in the dim light of a hospital room, sketches Max’s failing heart on a napkin so his mother can understand what words can’t explain; the ICU nurse who stays long after her shift ends, gently brushing the hair of a child who will never wake up; the donation nurse who enters a family’s darkest hour not with answers, but with quiet presence and unwavering care; the surgeon who steadies his hands – and his heart – when every second matters.

And in the chaos of resuscitation, amid alarms and broken bodies, a teddy bear is tucked beneath Keira’s arm: “Someone in the crash team has seen Keira not simply as a body, inert and unresponsive, but as a vulnerable child in need of compassion.”

The Story of a Heart is also a book about history. It’s not just about one child’s transplant, but about medicine, surgery, and the heart itself. Clarke weaves in the stories of early transplant pioneers, accidental discoveries, and the scientific stumbles and breakthroughs that built modern practice. She brings it all to life with a storyteller’s flair, making science feel intimate, alive, and deeply human.

What the heart means

What sets the heart apart, Clarke reminds us, is not just its function, but its symbolism. No other organ holds such emotional weight. “Hearts sing, soar, race, burn, break, bleed, swell, hammer and melt,” she writes. They are not just organs, they are vessels for our hopes, fears and deepest longings.

Clarke shows how, across history, the heart was seen as the source of emotion, morality – even the soul – and how that deep humanism still pulses through our language and culture today. We have our hearts broken, wear our hearts on our sleeves, and as Clarke puts it: “When trying to express our truest and most sincere selves, we do so by saying we speak from the heart, or about all that our heart desires.”

But what makes The Story of a Heart so exceptional is its emotional truth. Clarke never shies away from the pain. Max’s parents watch their son fade, terrified to even touch him. Keira’s father buys her a pink princess dress for her funeral. Max, wired to machines, records a goodbye message; we learn later he even tried to take his own life. And yet, there is light.

Keira’s sisters climb into bed with her, painting her nails and sliding Haribo sweet rings onto her fingers. Then comes a moment so clear, so quietly astonishing, it takes everyone’s breath away. Katelyn, Keira’s older sister, turns to the doctor and asks, with calm, steady eyes: “Can we donate her organs?”

This isn’t a clinical decision or a well-rehearsed conversation. It is an unprompted act of extraordinary love. These moments – fragile, generous, profoundly human – are the true beating heart of Clarke’s book.

From there, we are guided into a world so few know and even fewer ever witness: the quiet choreography that carries a gift of life from one person to another. What Katelyn sets in motion with just five words unfolds with such precision, that reading it feels like witnessing a kind of living magic.

The aftermath is just as moving. Max recovers quickly, walks again, laughs again. The two families meet. There are no big speeches, just quiet awe. And beyond that: a law is passed. Max and Keira’s Law brings in an opt-out system of donation in England. Two children. One legacy. A country changed.

And still, Clarke doesn’t let us forget the hard truths. Not every child survives. Not every family gets a miracle. Transplants are fragile. But in that fragility, she shows us, is the real miracle. Max goes fishing with his dad, the sky glows orange – Keira’s favourite colour. That is enough.

At the moment organ donation consent rates for children are declining in the UK, and there are more children on the transplant wait list than ever before. The Story of a Heart asks us to see the children, the families, and the quiet acts of love behind every donation. It’s a powerful reminder that the greatest gifts are often given in the darkest hours.

This book will break your heart – and fill it up again. It’s not just essential reading for anyone interested in organ donation and transplant. It’s essential reading for anyone who has ever loved.

This article features references to books that have been included for editorial reasons, and may contain links to bookshop.org. If you click on one of the links and go on to buy something from bookshop.org The Conversation UK may earn a commission.

The Conversation

Leah McLaughlin 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. The Story of a Heart by Rachel Clarke is a powerful account of one child’s gift to another – https://theconversation.com/the-story-of-a-heart-by-rachel-clarke-is-a-powerful-account-of-one-childs-gift-to-another-260611

Parental leave in the UK isn’t working – here’s what needs to change

Source: The Conversation – UK – By Ernestine Gheyoh Ndzi, Senior Lecturer at York Business School, York St John University

pikselstock/Shutterstock

The recent launch of a government review into parental leave and pay in the UK is a hugely welcome development. In order to bring about meaningful change, it must challenge the fundamental issue at the heart of current parental leave laws. They are strongly influenced by, and so perpetuate, gender norms that see women as caregivers and fathers as breadwinners.

Parents in the UK can take maternity leave, paternity leave and shared parental leave in the first year of their child’s life. While these allowances provide parents with support, the support is disproportionate in how it is split between mothers and fathers. Although gender roles have evolved significantly, UK policies lag behind.

Mothers and fathers are equal parents and have equal parenting responsibilities. However, mothers are allowed up to 52 weeks of maternity leave, while fathers are only entitled to two weeks of statutory paternity leave.

The introduction of shared parental leave in 2015 was welcomed as a positive step towards gender equality – but it has failed in this aim.

There are significant barriers stopping fathers from benefiting fully from the legislation. Parents can share up to 50 weeks of leave between them. But because mothers are entitled to a year of leave, the policy requires mothers to act as gatekeepers. The mother determines if the father can share the leave and how long she is willing to give up for the father.

Consequently, fathers have no autonomy or independence to take parental leave at a time that is important to them and their babies – and they may be reluctant to deprive the mother of leave she is entitled to.

What’s more, while maternity and paternity leave is well known and the process relatively straightforward, shared parental leave has been criticised for its complexity. Parents that have explored shared parental leave have found the policy and process incredibly complex because some employers still don’t understand how it works and so are unable to support parents.

The problems with the policy have affected its uptake. Only 5% of fathers take any shared parental leave.

Financial implications

Another problem that affects all three policies is the pay. While the UK has a generous maternity leave allowance of 52 weeks, this is not accompanied by a decent financial allowance.

Although employers can set more generous terms, the law requires only the first six weeks of maternity leave to be paid at 90% of the mother’s salary. This is followed by 33 weeks at statutory pay of £187.18 and 13 weeks of no pay. The two weeks of paternity leave are paid at the statutory rate of £187.18, or 90% of the father’s average weekly earnings (whichever is lower).

Man and pregnant woman silhouetted, looking stressed
Taking parental leave can bring financial and career worries.
christinarosepix/Shutterstock

And while shared parental leave allows the mother to split 50 weeks of leave with her partner, a significant period of this is unpaid. Out of these 50 weeks, parents can share 37 weeks of pay at statutory rate and the rest of the leave would be unpaid.

Mothers have returned to work early because financially they cannot afford to stay longer on maternity leave – a problem compounded by the rising cost of living. Fathers sometimes opt to take annual leave rather than paternity leave because of the low pay.

The same reason applies to shared parental leave because parents cannot afford to both be off at the same time or different times on the statutory rate. While the policies are well intended, there is no financial incentive for parents to take it.

Finances have a significant impact on parental leave choices. The government review should enhance parental leave pay to encourage and support parents, particularly fathers.

Impact on careers

The implications for parents’ careers also need to be considered. While parental leave should not affect the career aspirations or progressions of the parents, my research demonstrates otherwise. Mothers have been bullied, refused opportunities, and have felt forced to leave their jobs.

Research also shows that fathers have concerns about their careers when considering parental leave. While it is illegal for an employer to discriminate against a parent for taking parental leave, this remains an area of concern.

My research has demonstrated that some fathers consider shared parental leave as a “luxury” they cannot afford. They feel they need to work hard to demonstrate their commitment to their job. Equal parenting policies would support women’s careers and encourage fathers to take up more family responsibilities without fear of repercussions.

The last point to consider – and one that often goes overlooked – is that how parents choose to feed their baby may have an effect on their decisions to take parental leave. Babies can be breastfed, formula fed or a mixture of both breast and formula feeding. If the parents make the decision to breastfeed – a choice recommended by the World Health Organisation – this may affect the mother’s decision on how much leave she takes.

Employers have legal obligations to carry out risk assessments for breastfeeding mothers and make reasonable adjustments on specific health and safety guidelines. However, a general policy that covers the wider needs of breastfeeding mothers and offers them more support at work should be implemented.

My research shows that mothers may prefer to take more maternity leave to enable them to breastfeed.

The parental leave review shouldn’t miss the opportunity to introduce breastfeeding policies that ensure mothers are properly supported in the workplace – as well as making sure that both mothers and fathers have the opportunity to prioritise caring and their careers.

The Conversation

Ernestine Gheyoh Ndzi 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. Parental leave in the UK isn’t working – here’s what needs to change – https://theconversation.com/parental-leave-in-the-uk-isnt-working-heres-what-needs-to-change-209661

China’s interest in the next Dalai Lama is also about control of Tibet’s water supply

Source: The Conversation – UK – By Tom Harper, Lecturer in International Relations, University of East London

As the 14th Dalai Lama celebrates his 90th birthday with thousands of Tibetan Buddhists, there’s already tension over how the next spiritual leader will be selected. Controversially, the Chinese government has suggested it wants more power over who is chosen.

Traditionally, Tibetan leaders and aides seek a young boy who is seen as the chosen reincarnation of the Dalai Lama. It is possible that after they do this, this time Beijing will try to appoint a rival figure.

However, the current Dalai Lama, who lives in exile in India, insists that the process of succession will be led by the Swiss-based Gaden Phodrang Trust, which manages his affairs. He said no one else had authority “to interfere in this matter” and that statement is being seen as a strong signal to China.


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Throughout the 20th century, Tibetans struggled to create an independent state, as their homeland was fought over by Russia, the UK and China. In 1951, Tibetan leaders signed a treaty with China allowing a Chinese military presence on their land.

China established the Tibetan Autonomous Region in 1965, in name this means that Tibet is an autonomous region within China, but in effect it is tightly controlled. Tibet has a government in exile, based in India, that still wants Tibet to become an independent state.

This is a continuing source of tension between the two countries. India also claims part of Tibet as its own territory.

Beijing sees having more power over the selection of the Dalai Lama as an opportunity to stamp more authority on Tibet. Tibet’s strategic position and its resources are extremely valuable to China, and play a part in Beijing’s wider plans for regional dominance, and in its aim of pushing back against India, its powerful rival in south Asia.

The Dalai Lama celebrates his 90th birthday as many Tibetans living in China fear talking about independence.

Tibet provides China with a naturally defensive border with the rest of southern Asia, with its mountainous terrain providing a buffer against India. The brief Sino-Indian war of 1962 when the two countries battled for control of the region, still has implications for India and China today, where they continue to dispute border lands.

As with many powerful nations, China has always been concerned about threats, or rival power bases, within its neighbourhood. This is similar to how the US has used the Monroe Doctrine to ensure its dominance over Latin America, and how Russia seeks to maintain its influence over former Soviet states.

Beijing views western criticism of its control of Tibet as interference in its sphere of influence.




Read more:
India and Pakistan tension escalates with suspension of historic water treaty


Another source of contention is that Beijing traditionally views boundaries such as the McMahon line defining the China-India border as lacking legitimacy, a border drawn up when China was at its weakest in the 19th century. Known in China as the “century of humiliation”, this was characterised by a series of unequal treaties, which saw the loss of territory to stronger European powers.

This continues to a source of political tensions in China’s border regions including Tibet. This is a controversial part of China’s historical memory and continues to influence its ongoing relationship with the west.

Demand for natural resources

Tibet’s importance to Beijing also comes from its vast water resources. Access to more water is seen as increasingly important for China’s wider push towards self-sufficiency which has become imperative in the face of climate change. This also provides China with a significant geopolitical tool.

For instance, the Mekong River rises in Tibet and flows through China and along the borders of Myanamar and Laos and onward into Thailand and Cambodia. It is the third longest river in Asia, and is crucial for many of the economies of south-east Asia. It is estimated to sustain 60 million people.

China’s attempts to control water supplies, particularly through the building of huge dams in Tibet, has added to regional tensions. Around 50% of the flow to the Mekong was cut off for part of 2021, after a Chinese mega dam was built. This caused a lot of resentment from other countries which depended on the water.

Moves by other nations to control access to regional water supplies in recent years show how water is now becoming a negotiating tool. India attempted to cut off Pakistan’s water supply in 2025 as part of the conflict between the two. Control of Tibet allows China to pursue a similar strategy, which grants Beijing leverage in its dealings with New Delhi, and other governments.

A map of Tibet and surrounding countries.

Shutterstock.

Another natural resource is also a vital part of China’s planning. Tibet’s significant lithium deposits are crucial for Chinese supply chains, particularly for their use in the electric vehicle industry. Beijing is attempting to reduce its reliance on western firms and supplies, in the face of the present trade tensions between the US and China, and Donald Trump’s tariffs on Chinese goods.

Tibet’s value to China is a reflection of wider changes in a world where water is increasingly playing an important role in geopolitics. With its valuable natural resources, China’s desire to control Tibet is not likely to decrease.

The Conversation

Tom Harper 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. China’s interest in the next Dalai Lama is also about control of Tibet’s water supply – https://theconversation.com/chinas-interest-in-the-next-dalai-lama-is-also-about-control-of-tibets-water-supply-255843

Lioness Lucy Bronze uses ‘cycle syncing’ to get an edge on her competition — here’s how the practise works

Source: The Conversation – UK – By Mollie O’Hanlon, PhD Candidate, Exercise Physiology, Nottingham Trent University

Bronze has said ‘cycle syncing’ has been important for her performance. Jose Breton- Pics Action/ Shutterstock

England footballer Lucy Bronze recently said in an interview that “cycle syncing” gives her an edge on the pitch. This practice involves aligning your training schedule to the different phases of your menstrual cycle.

Cycle syncing has become increasingly popular in recent years – especially among athletes who are looking to get an edge over the competition. Even Chelsea women’s football team have put this new approach to use, tailoring training schedules according to each player’s menstrual cycle.

For the average person, tailoring your workouts to your menstrual cycle is probably not going to have much of an impact. But for a professional athlete such as Bronze, cycle syncing could be a gamechanging strategy in shaping her elite performance.


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The menstrual cycle begins and ends with menstruation (a period). While the length of the menstrual cycle varies for each person, it’s usually around 28 days.

The menstrual cycle is underpinned by fluctuations in levels of the female sex hormones oestrogen and progesterone. This is why the cycle is divided into three key phases: early follicular, late follicular and the luteal phase.

The early follicular phase usually lasts around seven days and begins with the start of your period. This is when hormone levels are at their lowest.

The late follicular phase follows on from the first seven days, and is where ovulation happens – usually around day 14 of the cycle, though this will depend on cycle length. Ovulation is when the egg is released and you’re at your most fertile.

After that comes the luteal phase (lasting around 12-14 days), when progesterone peaks to prepare the body for pregnancy. If pregnancy doesn’t happen, hormones drop and the cycle begins again.

It’s no secret that mood and energy levels can shift – sometimes significantly – throughout the menstrual cycle. This is why some female athletes have begun using cycle syncing. By tailoring training schedules to match hormonal fluctuations, women are gaining a deeper understanding of their bodies and the symptoms they experience throughout each phase – empowering them to train smarter, not harder.

Bronze said the strategy has transformed her performance, saying that during certain phases of her cycle she feels “physically capable of more and can train harder”.

Despite these testimonials, scientists are yet to reach a definitive conclusion on how the menstrual cycle affects athletic performance.

Lucy Bronze smiles during a match.
Bronze is just one of many female athletes putting ‘cycle syncing’ to the test.
Christian Bertrand/ Shutterstock

So far, there’s some suggestion that there may be a slight dip in performance (specifically to strength and endurance) during the early follicular phase. However, these effects are minimal – and highly dependent on the person. It’s also not entirely clear what mechanisms underpin these small performance dips that some women experienced.

Other research suggests that certain aspects of the neuromuscular system (the network of nerves and muscles that make movement possible) – specifically how our muscles generate force – is altered during the luteal phase. Research has also found that certain muscles may fatigue less quickly during this phase as well.

This implies that during the luteal phase, there may be changes in signals from the brain and spinal cord to the skeletal muscles. However, no changes in the neuromuscular function have been observed.

Part of the reason it’s so difficult for researchers to gather enough evidence to draw firm conclusions on the menstrual cycle’s potential effects on athletic performance is because of the huge variability in menstrual cycle characteristics, which makes it difficult to study. Phase length, hormone levels and symptoms can differ widely between women – and even from cycle to cycle.

The small effects seen in these studies will have little effect on how most of us train or exercise. But for an elite athlete, these minuscule differences could have an effect on their training and competition, which may be why so many are willing to give the practice a try.

So while it isn’t entirely clear how much influence certain menstrual cycle phases have on performance, how you feel during different phases could certainly affect your ability to train at your best.

Around 77% of female athletes experience negative symptoms in the days leading up to and during menstruation. Fatigue, feeling less motivated and even experiencing digestive issues such as bloating and nausea, could all affect your ability to train at your best.

Trying cycle syncing

If you’re still interested in giving cycle syncing a try to see if it has any effect for you, the best place to start is by tracking your menstrual cycle. This will help you understand your body, how you feel in each phase of your cycle and what effect certain symptoms have on your training.

It’s recommended you track your cycle for at least three months before making any changes to your training to establish a baseline and spot trends over time.

For example, if you notice you often feel fatigued when training in your luteal phase, it may help to focus on ensuring you fuel well with carbohydrates before and during workouts. Or on days where you feel more energetic and motivated to train, you might be able to push yourself a bit harder in your workouts.

Whether you’re playing for England in the Euros or simply working towards your own fitness goals, understanding your cycle can help you train smarter, manage your symptoms better and stay consistent with your training.

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. Lioness Lucy Bronze uses ‘cycle syncing’ to get an edge on her competition — here’s how the practise works – https://theconversation.com/lioness-lucy-bronze-uses-cycle-syncing-to-get-an-edge-on-her-competition-heres-how-the-practise-works-260153

How M&S responds to its cyber-attack could have a serious impact on its future – and its customers

Source: The Conversation – UK – By Aybars Tuncdogan, Reader in Digital Innovation and Information Security, King’s College London

raymond orton/Shutterstock

The cyber-attack on Marks & Spencer will lead to an estimated £300 million hit to the company’s profits this year. It now aims to have online shopping at the store back to normal by August, more than three months after IT systems were compromised.

Fans of M&S clothing and food will be relieved after all of the uncertainty. But that level of uncertainty, as well as the huge cost, is surely a sign that big retailers, which millions of people rely on, need to change how they think about – and invest in – cybersecurity.

It has to be an absolute priority. After all, few marketing strategies or HR initiatives can save a company £300 million in just six weeks. But perhaps a more sophisticated cybersecurity department could have done just that.

To be fair, M&S faced a relatively rare, high-impact ordeal. Most cyber-attacks of this nature don’t affect customers so directly, and much of the recovery typically happens behind the scenes.

But M&S shoppers saw online orders collapse, contactless payments fail and refunds, gift cards and loyalty points not functioning. Disruption in stock-management and warehousing led to empty shelves and food waste.

On June 27, M&S issued a public apology and a £5 digital gift card to affected customers. But research suggests that the most important element of keeping customers onside is the quality of the recovery process, and whether normal service is eventually resumed.

To get back to normal service, it is possible that a ransom was paid to the cyber attackers, but M&S has refused to confirm or deny this. (One survey found that many organisations hit by cyber attacks agreed to pay a ransom – and then suffered a subsequent breach, often from the very same culprits.)

But even when normal service returns, when hackers steal customer data, as they did with M&S, research suggests that this information is often reused by criminals in identity theft and phishing. A study even found that victims of data breaches are more likely to have mortgage applications denied.

From what we know about the breach at M&S, it seems that the cyber-attackers simply used a phishing technique to get the support desk of a third-party contractor to reset the password of an admin-level account. That said, although in this case the main vulnerability was human, the lesson to be learnt here is that sometimes just one vulnerability can shake the whole system to its core.

This is why business owners need to think of cybersecurity not just as a tedious and inconvenient IT issue, but as a core function of the business. Otherwise, as the M&S case illustrates, it is simply not possible for the rest of the corporate structure to operate.

Testing times

So cybersecurity targets must be incorporated into every department to ensure collective defence. And organisations also need to stress-test the different aspects of their systems.

That could be checking on human responses, but it should also include technology (like a vulnerability in the web server), physical barriers (a poorly secured server room door) and HR procedures (failure to revoke ex-employee access).

Laptop in use with with graphic of padlock and security images.
Lock down your laptop.
Thapana_Studio/Shutterstock

These lines of defence have to be stress-tested regularly and from multiple angles, rather than being considered an annual checkbox activity for compliance.

Scenario-based tests – essentially a cyber fire-drill — such as internal threat simulations and response exercises, can provide useful insights into an organisation’s readiness to detect, respond to and recover from cyber-attacks.

It’s also important that organisations learn to communicate clearly once a breach occurs. Research into responses to data breaches suggests that any backlash is sharper when the company seems to be trying to hide the breach, which may later be publicised by the criminals instead.

Consumers should also remember that they are not powerless. We may not be able to prevent a data breach, but all of us can help to stop attackers from infiltrating our online worlds by something as simple as not re-using the same passwords.

By remaining sceptical, we can prevent attackers from using the information they stole to phish us later. And by thinking carefully about what personal data we share with companies, we can reduce the impact of future breaches.

The Conversation

Aybars Tuncdogan 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. How M&S responds to its cyber-attack could have a serious impact on its future – and its customers – https://theconversation.com/how-mands-responds-to-its-cyber-attack-could-have-a-serious-impact-on-its-future-and-its-customers-260429

From Kabul to the catwalk – the surprising global history behind fashion’s fur revival

Source: The Conversation – UK – By Magnus Marsden, Professor of Social Anthropology, University of Sussex

The winter season of 2024-25 marked a resurgence of fur clothing – both faux and real – in fashion across Europe and North America. Shearling jackets and embroidered “Penny Lane coats” featured widely in reports on the latest fashion trends. Vintage fur coats are also back in vogue.

To many, the resurgence came as a surprise. The anti-fur movement, especially influential in the 1980s, continues to shape perceptions of fur. In the 2010s, cities including New York and Los Angeles banned the use of fur to make clothes. The UK meanwhile banned the farming of fur-bearing animals, and, alongside the EU, has committed itself to legislating against all fur imports.

Just last year the town of Worthing, in England, debated whether their mayor should wear ceremonial robes trimmed with fur or not. Despite these trends, many young people have embraced the renewed trend of wearing real fur.

Some clothes made from animal skins became popular during the counter-cultural movement of the 1960s, but historically, fur has mostly marked status, wealth and luxury. Today, many critics interpret fur’s return to fashion as a cultural expression of rightwing politics.


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Fur is prominent in the “boom boom” fashion trend, which emphasises excess and “male-coded values”. It has been described by fashion journalists as “over-the-top and unashamed about its own greed and lack of wokeness”.

Fur clothing is a reminder of the moral tensions between need and desire, and luxury and excess. In addition to being inter-generational, these debates are also about gender. For much of the 20th century, fur coats symbolised femininity, erotic power and class position in the west. But by the 1980s, advertising campaigns depicted women who wore fur as either stupid and unthinking or thinking and unspeakably cruel, leading many to jettison it.

Anti-fur protests were held across the US in 1994.

Fur’s return to fashion has injected old debates with new significance. Some young people are willing to wear faux fur because it does not involve killing animals. But others argue that, because it is made from synthetic material, faux fur is actually more environmentally damaging and prefer to wear the real thing. They claim that wearing vintage fur is a form of “sustainable consumption” but are challenged by those who argue that this fashion trend ultimately justifies killing animals to make clothes.

The boom boom trend is said to embody a contemporary expression of 1980s “conspicuous consumerism”, but in an era of economic austerity the adoption of fur by young people suggests the clothes they wear identify their desires rather than their financial reality.

A global history of fur

Today, as in the 1980s, the perspectives, interests and experiences of non-Europeans are often unheard in debates around fur. A decline of fur-bearing animal populations in North America and Siberia from the early 19th century, led to a global expansion in fur farming.




Read more:
How central Asian Jews and Muslims worked together in London’s 20th-century fur and carpet trade


From the 1850s, for example, Central Asia supplied furs to Europe and North America. Local artisans cured the pelts of karakul lambs – a native breed – to yield a rich and glossy fur. In central and south Asia, men of high status wore karakul hats; in Europe and America, they were mostly used to make women’s coats.

After the Russian revolution of 1917, many nomadic and semi-nomadic pastoralists, who raised sheep and other animals, left central Asia and moved with their flocks to neighbouring Afghanistan. The trade in karakul fur grew in the country, and foreign currency reserves came to depend on lambskins sold at auctions in London and New York.

In the 1960s, sheepskin coats made in Afghanistan – known as “Afghans” – became popular in the west, being worn by stars including Brian Jones of the Rolling Stones. The 1969 British edition of Vogue featured an interview with an icon of “oriental chic”, the “beautiful, dashing, intelligent, adventurous” Afghan socialite, Safia Tarzi, who lived in Paris, and ran a boutique clothing shop in Kabul.

The Afghan coat enjoyed a resurgence in 2000 having been worn by the character Penny Lane (Kate Hudson) in the film Almost Famous.




Read more:
Friday essay: how ‘Afghan’ coats left Kabul for the fashion world and became a hippie must-have


In the 1980s, the anti-fur campaign contributed to a declining market for karakul. For decades, rumours of Central Asian shepherds extracting lambs from the wombs of sheep to ensure a steady yield of delicate pelts had circulated. Moral opposition to the practice was not confined to the west.

During my research on globally dispersed activists, intellectuals and merchants from Afghanistan, a man from Afghanistan, now based in London, told me that his father banned his family from wearing karakul hats because sheep and their lambs were treated cruelly.

In the 1990s, civil war destroyed much of the infrastructure of the karakul industry in Afghanistan, but a trickle of pelts reached auction houses located in Frankfurt, Copenhagen and Helsinki.

In the 2000s, international development organisations attempted to revive the trade, though sales never returned to anyway near the levels of the 1970s. By the 2010s, families in northern Afghanistan struggling economically opted to send sons to travel illegally to Turkey to find work as shepherds for commercially oriented Turkish farmers.

Promotional videos of fashion houses occasionally touch on the Penny Lane coat’s ties to Afghanistan, but media coverage of fur fashions rarely address its historical connections to central Asia.

The Conversation

Magnus Marsden received funding from the Arts and Humanities Research Council including for the research upon which this article is based.

ref. From Kabul to the catwalk – the surprising global history behind fashion’s fur revival – https://theconversation.com/from-kabul-to-the-catwalk-the-surprising-global-history-behind-fashions-fur-revival-256382

Biblical Women Ageing Disgracefully: artist Sarah Lightman reimagines characters battling midlife, motherhood and menopause

Source: The Conversation – UK – By Dawn Llewellyn, Associate professor of Religion and Gender, Theology and Religious Studies, University of Chester

What happens when the women immortalised in old master paintings step out of their gilded frames and into the chaos of modern domestic life? That’s the question artist Sarah Lightman tackles, with wit, irreverence and insight, in her exhibition Biblical Women Ageing Disgracefully, now on at Chester Visual Arts, Grovesnor Shopping Centre.

In works from her Biblical Domestic (2021–2024) and Menstrual Hystery (2024) series, Lightman trades halos for housework, and heavenly glory for the cluttered reality of her own everyday life. Her saints and heroines aren’t meditating in divine serenity – they’re battling menopause, messy kitchens and midlife malaise.

With humour and intimacy, Lightman probes the distance between the idealised women of religious art and the ageing bodies we’re taught to hide. Her characters, drawn from both the canon of western Christian art and the sacred Jewish texts of her upbringing, are lovingly reimagined through a feminist lens.

What if Mary hated soft play as much as the rest of us? What if Eve was just trying to get through another basket of laundry? What if biblical women aged in real time?

With bold colours, absurdist touches and deep empathy, Biblical Women Ageing Disgracefully reframes these archetypes for today – and starts fresh conversations about visibility, care and womanhood.

Old masters, new messes

In Fridge Frustrations (2022), Caravaggio’s Judith Beheading Holofernes (1599) becomes a scene of domestic dread. Judith still holds Holofernes’ severed head – but now her crisis is storage, not salvation:

Judith can’t find anywhere in the fridge for her organic and fresh cut of Holofernes.

Lightman retains the dramatic composition of the original but shifts its meaning entirely. Her watercolour medium softens the baroque oil intensity, introducing levity without losing emotional depth.

In The Annunciation of the Menopause (2024), she riffs on The Annunciation by Fra Angelico (1425-26), the early Renaissance fresco where the Virgin Mary receives the angel Gabriel’s news that she’ll bear the son of God.

Here, Mary’s serene acceptance is swapped for something far more visceral: she sits beside an exam table mid heavy bleed, not in graceful surrender but bodily discomfort. Gabriel is gone, replaced by a gynaecologist in latex gloves. The walls? Tiled not with gold leaf but with packets of Always. This is no divine encounter – just hot flushes, greasy hair and hormonal chaos. No spiritual serenity in sight.

Instead of youthful grace, Lightman gives us perimenopausal truth: gritty, awkward, real.

Not a rejection, but a rewriting

Lightman’s work is unabashedly feminist and unapologetically funny – but it’s also rooted in reverence. Her reinterpretations of women from Hebrew scripture honour the complexity of these figures and draw from the feminist Jewish tradition of midrash: creative interpretation that fills in the biblical silences.

Lightman isn’t discarding these sacred stories: she’s inhabiting them. She paints the parts we were never told, the thoughts and struggles left out of the male-dominated canon. Her canvases ask: what if we didn’t accept the gaps in these women’s lives? What if we imagined them into our own?

Context matters – and Biblical Women Ageing Disgracefully is exhibited not in a white-walled gallery but in Chester’s Grosvenor Precinct, having previously shown at Chester’s cultural centre Storyhouse. The location is deliberate. These Madonnas and menopausal saints appear exactly where they live now: among shopping bags, toddler tantrums and the quiet sighs of women holding it all together.

Meeting Eve, Mary, Bathsheba, Susanna and Lot’s wife in a shopping centre creates a surreal and poignant dissonance. It collapses the sacred and the ordinary, and invites viewers to see their own lives reflected in these ancient figures.

Messy, mortal and magnificent

It’s a risk, of course, putting menopause, motherhood, grief, housework and rape culture centre stage. There’s a version of this exhibition that could have been grim. But Lightman’s palette is anything but dour. Her watercolours are vibrant and playful, her titles sharp with satire. These women aren’t tragic martyrs; they’re exhausted, yes, but also knowing, cheeky and in on the joke.

Lightman treats art history not as a fixed monument, but as a toolkit to be deconstructed and rebuilt. She gives her saints their bodies back – saggy, sweaty, miraculous – and their agency too.

What makes Biblical Women Ageing Disgracefully so powerful is its embrace of contradiction. It is sacred and silly, sincere and subversive, heartbreaking and hilarious. It is, in essence, a feminist midrash in watercolour: retelling holy stories through the grit and glory of contemporary womanhood, and holding them close even as it pushes them open.

Biblical Women Ageing Disgracefully is on display at Chester Visual Arts, Grovesnor Shopping Centre until July 13.

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. Biblical Women Ageing Disgracefully: artist Sarah Lightman reimagines characters battling midlife, motherhood and menopause – https://theconversation.com/biblical-women-ageing-disgracefully-artist-sarah-lightman-reimagines-characters-battling-midlife-motherhood-and-menopause-260522

¿Qué le sucede a nuestro cerebro cuando vemos vídeos a velocidades más rápidas de lo normal?

Source: The Conversation – (in Spanish) – By Marcus Pearce, Reader in Cognitive Science, Queen Mary University of London

Pressmaster/Shutterstock

Muchos de nosotros hemos adquirido el hábito de escuchar pódcast, audiolibros y otros contenidos en línea a velocidades de reproducción más altas. Para los jóvenes, incluso podría ser la norma. Por ejemplo, una encuesta realizada a estudiantes de California reveló que el 89 % cambiaba la velocidad de reproducción de las clases online, mientras que en los medios de comunicación han aparecido numerosos artículos sobre cómo se ha generalizado el visionado rápido.

Es fácil pensar en las ventajas de ver las cosas más rápido. Te permite consumir más contenido en el mismo tiempo o repasar el mismo contenido varias veces para sacarle el máximo partido.

Esto podría ser especialmente útil en un contexto educativo, donde podría liberar tiempo para consolidar conocimientos, hacer pruebas prácticas, etc. Ver vídeos rápidamente también es potencialmente una buena forma de asegurarse de mantener la atención y el interés durante todo el tiempo que duran, evitando así que la mente se distraiga.

Pero ¿qué hay de las desventajas? Resulta que también hay más de una.

Cuando una persona se expone a información oral, los investigadores distinguen tres fases de la memoria: codificar la información, almacenarla y, posteriormente, recuperarla. En la fase de codificación, el cerebro necesita cierto tiempo para procesar y comprender el flujo de palabras que recibe. Las palabras deben extraerse y su significado contextual debe recuperarse de la memoria en tiempo real.

Las personas suelen hablar a una velocidad de unas 150 palabras por minuto, aunque duplicar la velocidad a 300 o incluso triplicarla a 450 palabras por minuto sigue estando dentro del rango de lo que podemos considerar inteligible. La cuestión es más bien la calidad y la longevidad de los recuerdos que formamos.

La información entrante se almacena temporalmente en un sistema de memoria llamado memoria de trabajo. Esto permite que los fragmentos de información se transformen, combinen y manipulen hasta alcanzar una forma lista para ser transferida a la memoria a largo plazo. Dado que nuestra memoria de trabajo tiene una capacidad limitada, si llega demasiada información demasiado rápido, esta puede desbordarse. Esto provoca una sobrecarga cognitiva y la pérdida de información.

Visualización rápida y recuperación de información

Un metaanálisis reciente examinó 24 estudios sobre el aprendizaje a partir de vídeos de conferencias. Los estudios variaban en su diseño, pero en general consistían en reproducir una videoconferencia a un grupo a velocidad normal (1x) y reproducir la misma videoconferencia a otro grupo a una velocidad mayor (1,25x, 1,5x, 2x y 2,5x).

Al igual que en un ensayo controlado aleatorio utilizado para probar tratamientos médicos, los participantes fueron asignados aleatoriamente a cada uno de los dos grupos. A continuación, ambos grupos realizaron una prueba idéntica después de ver el vídeo para evaluar sus conocimientos sobre el material. Las pruebas consistían en recordar información, responder a preguntas de opción múltiple para evaluar su capacidad de recuerdo, o ambas cosas.

Botones de reproducción
La reproducción más rápida puede no ayudar al estudio.
V.Studio

El metaanálisis mostró que aumentar la velocidad de reproducción tenía efectos cada vez más negativos en el rendimiento de la prueba. A velocidades de hasta 1,5 veces, el coste era muy pequeño. Pero a partir de 2 veces, el efecto negativo era de moderado a grande.

Para poner esto en contexto, si la puntuación media de un grupo de estudiantes era del 75 %, con una variación típica de 20 puntos porcentuales en cualquier dirección, aumentar la velocidad de reproducción a 1,5x reduciría el resultado medio de cada persona en 2 puntos porcentuales. Y aumentar la velocidad a 2,5x supondría una pérdida media de 17 puntos porcentuales.

La edad importa

Curiosamente, uno de los estudios incluidos en el metaanálisis también investigó a adultos mayores (de 61 a 94 años) y descubrió que se veían más afectados por ver contenidos a velocidades más rápidas que los adultos más jóvenes (de 18 a 36 años). Esto puede reflejar un debilitamiento de la capacidad de memoria en personas por lo demás sanas, lo que sugiere que los adultos mayores deberían visualizar los contenidos a velocidad normal o incluso a velocidades de reproducción más lentas para compensar.

Sin embargo, aún no sabemos si se pueden reducir los efectos negativos de la reproducción rápida haciéndolo con regularidad. Por lo tanto, podría ser que los adultos más jóvenes simplemente tengan más experiencia con la reproducción rápida y, por lo tanto, sean más capaces de hacer frente al aumento de la carga cognitiva. Del mismo modo, esto significa que no sabemos si las personas más jóvenes pueden mitigar los efectos negativos sobre su capacidad para retener información utilizando con más frecuencia la reproducción más rápida.

Otra incógnita es si ver vídeos a velocidades de reproducción más altas tiene efectos a largo plazo sobre la función mental y la actividad cerebral. En teoría, estos efectos podrían ser positivos, como una mayor capacidad para manejar una mayor carga cognitiva. O podrían ser negativos, como una mayor fatiga mental derivada del aumento de la carga cognitiva, pero actualmente carecemos de pruebas científicas para responder a esta pregunta.

Una última observación es que, incluso si reproducir el contenido a, por ejemplo, 1,5 veces la velocidad normal no afecta al rendimiento de la memoria, hay evidencia que sugiere que la experiencia es menos agradable. Eso puede afectar a la motivación y la experiencia de las personas a la hora de aprender cosas, lo que podría hacer que encontraran más excusas para no hacerlo. Por otro lado, la reproducción más rápida se ha popularizado, por lo que quizá, una vez que la gente se acostumbre, no haya ningún problema. Esperemos que en los próximos años comprendamos mejor estos procesos.

The Conversation

Marcus Pearce 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. ¿Qué le sucede a nuestro cerebro cuando vemos vídeos a velocidades más rápidas de lo normal? – https://theconversation.com/que-le-sucede-a-nuestro-cerebro-cuando-vemos-videos-a-velocidades-mas-rapidas-de-lo-normal-260870

How a lottery-style refund system could boost recycling

Source: The Conversation – Canada – By Jiaying Zhao, Associate Professor, Psychology, University of British Columbia

Imagine you’re standing at a bottle depot with an empty pop can. You can get a dime back, or you can take a chance at winning $1,000. Which would you choose?

Every year, the world produces two trillion beverage containers but only 34 per cent of glass bottles, 40 per cent of plastic bottles and 70 per cent of aluminium cans are recycled.

To increase recycling rates, many countries have adopted deposit refund systems, where you pay a small deposit, say 10 cents, when you buy an eligible beverage container and get this deposit back when you return it to a local depot.

Through this system, approximately 80 per cent of containers in British Columbia and almost 85 per cent of containers in Alberta are recovered. Still, that leaves millions of containers as litter, in landfills or incinerated every year, contributing to pollution and greenhouse gas emissions.

With Canada’s goal of zero plastic waste by 2030 drawing near, a new approach to recycling beverage containers could make a difference.

We recently conducted a research experiment to find out if more people would recycle more often if they had a chance to win a prize.

A lottery-style refund to boost recycling

Psychology research shows that people tend to prefer a small chance to win a large reward over a guaranteed small reward. For example, people would more often prefer a small chance to win $5,000 over receiving a $5 reward.

Applying this insight to recycling, we turned the small guaranteed refund of $0.10 in B.C. and Alberta into a 0.01 per cent chance of getting $1,000. We set up recycling tables at food courts in Vancouver and at a RibFest event in Spruce Grove, Alta.

When people brought their beverage containers to us to recycle, we presented them with five options for a refund. They could get their guaranteed 10 cents, or a chance to win a larger amount of money, the highest option being $1,000.

We found that people preferred the chance to win $1,000 over the other options, and they felt the happiest after making this choice.

To see if the lottery option actually increased recycling, we conducted an experiment where we told people ahead of time that they would get their guaranteed 10-cent refund or that they had a chance to win $1,000 for each bottle they brought to our study.

We found that people brought 47 per cent more beverage containers when we offered them a chance to win $1,000 than when we offered them the guaranteed refund.

Overall, our findings suggest that offering a chance to win a larger amount of money can meaningfully boost beverage container recycling. The excitement of a potential big win can motivate people who may not be enticed by the typical small, guaranteed refund.

Choice matters

A one-size-fits-all approach won’t work. People recycle for different reasons. They also have different risk tolerances, and some may rely on the guaranteed refund for additional income. To capture diverse preferences and needs, it’s vital that the lottery-style refund is offered in addition to the guaranteed refund, not instead of it.

It would also be beneficial to include smaller, more frequent prizes alongside the grand prize, so people win relatively frequently to keep motivations high.

This is Norway’s approach to their recycling lottery, with 39 per cent of people choosing the lottery option when they recycle. In 2023, Norway’s recycling lottery achieved a 92.3 per cent container return rate.

Importantly, our research does not capture people who collect large bags of containers to return to the depot. It’s possible that this demographic may have different preferences for the refund, and future research should examine this group in particular.

Green lottery for good

The lottery-style refund has the same expected payout as the 10-cent refund per bottle. This means that, on average, people will take home the same amount of money as with the guaranteed option, without incurring additional losses or gains. This benevolent factor distinguishes the lottery-style refund from other types of lotteries or gambling that often profit off the players.

Since the only way to enter this lottery-style refund is to recycle beverage containers, it’s impossible to directly re-enter any winnings into the lottery. There are also no near-misses, losses disguised as wins, exciting lights and sounds or other sensory stimulation often associated with gambling.

Some might be apprehensive about potential gambling dangers of creating a lottery system. However, there has not been a single case linking the recycling lottery to gambling addiction. There is also no evidence that purchases of beverage containers would increase as a result of the lottery-style refund.

Our study’s transparent design, with clear odds, ensures fairness, unlike casino games built to take players’ cash. For this approach to be successful, deposit refund systems must maintain this transparency in lottery-style program operations and payouts.

If done right, offering a chance to win a higher amount of money for recycling can meaningfully increase recycling rates, contribute to a circular economy and allow people to choose the refund option that works best for them.

The Conversation

Jiaying Zhao receives funding from the Social Sciences and Humanities Research Council of Canada.

Jade Radke receives funding from the Social Sciences and Humanities Research Council of Canada Doctoral Fellowship and the University of British Columbia Indigenous Graduate Fellowship.

ref. How a lottery-style refund system could boost recycling – https://theconversation.com/how-a-lottery-style-refund-system-could-boost-recycling-259896