Health
Speaking Multiple Languages May Slow Ageing, European Study Finds
Learning and using more than one language could help slow biological ageing and promote longer, healthier lives, according to a major European study published in Nature.
Researchers analysed data from more than 80,000 adults aged between 51 and 90 across 27 European countries to explore how language use might affect the pace of ageing. The study found that people who spoke multiple languages were significantly less likely to experience accelerated ageing — a condition in which a person’s biological age is higher than their actual years, increasing the risk of chronic illnesses.
The research team discovered that multilingual individuals were about half as likely to show signs of accelerated ageing as those who spoke only one language. The effect was also cumulative, meaning each additional language offered measurable protection against ageing.
“Each additional language provided measurable protection,” said Agustin Ibanez, a neuroscientist at Trinity College Dublin and co-author of the study. “It’s a strong signal that everyday mental activity, such as using multiple languages, can influence the biological pace of ageing.”
Ibanez explained that speaking several languages activates multiple cognitive systems at once, requiring individuals to focus attention, manage interference, and switch between linguistic rules. “These processes strengthen the brain networks that typically weaken with age,” he said.
Previous studies had linked bilingualism to slower cognitive decline, but the new research expands the scope to include overall biological ageing. By using a large and diverse sample, the findings suggest that multilingualism benefits not just brain health but also physical and emotional well-being.
“Multilingualism enhances social connectedness, cultural belonging, and emotional regulation,” Ibanez noted. “These experiences reduce stress and support cardiovascular, metabolic, and immune health. The effect is multi-layered, combining biological, neural, cognitive, and social factors that work together to build resilience.”
Across Europe, about 75 per cent of working-age adults can speak more than one language, according to EU data. Northern European countries such as Sweden and Denmark have some of the highest rates of bilingualism, while Southern European nations tend to score lower. In contrast, the United Kingdom has seen a decline in foreign language learning. In 2024, only 2.97 per cent of A-level exams were in modern languages, according to the Higher Education Policy Institute.
Ibanez said the study should encourage governments and educators to promote language learning as part of broader public health and social inclusion strategies. “Encouraging early and sustained language exposure in schools can build long-term cognitive and emotional resilience,” he said. “For adults, language learning can foster inclusion, creativity, and well-being.”
He added that language acquisition could even become a low-cost tool to support healthy ageing. “Health systems increasingly recognise that social and cultural factors influence ageing,” Ibanez said. “Our results suggest that language learning is both cultural and biomedical.”
Health
Global Mental Health Cases Near 1.2 Billion as Anxiety and Depression Drive Sharp Worldwide Rise
A major global analysis has found that mental health conditions have surged to an estimated 1.2 billion people worldwide, driven largely by steep increases in anxiety and depression over the past three decades.
The findings, published in The Lancet as part of the Global Burden of Disease Study 2023, show that the number of people living with mental disorders has almost doubled since 1990, marking a 95% rise. Researchers say major depressive disorder and anxiety disorders have seen even sharper growth, increasing by 131% and 158% respectively, making them the most prevalent mental health conditions globally.
The report describes mental illnesses as widespread conditions that create long-term disability and significant human suffering. It also highlights broader consequences for economies and public services, including reduced productivity, lower workforce participation and increasing pressure on health and welfare systems.
Researchers estimate that in 2023 alone, around 620 million females and 552 million males were affected by mental health conditions. While the overall burden is rising across both sexes, the study points to notable differences in the types and prevalence of disorders.
Among women, depression and anxiety were the most commonly reported conditions, alongside higher rates of eating disorders such as anorexia nervosa and bulimia nervosa. The report links this disparity to a mix of biological, social and structural factors, including exposure to domestic violence, sexual abuse, gender inequality and reproductive health-related changes.
In contrast, neurodevelopmental and behavioural disorders, including attention deficit hyperactivity disorder (ADHD), conduct disorder and autism spectrum conditions, were more frequently diagnosed in men.
Teenagers aged 15 to 19 were identified as the group experiencing the highest mental health burden globally, raising concerns about early onset of conditions and insufficient preventive care for young people.
The study identifies several key risk factors associated with mental illness, including childhood sexual violence, bullying and intimate partner violence. These factors are strongly linked to conditions such as depression, schizophrenia, bipolar disorder and anxiety disorders. However, researchers note that such exposures have remained relatively stable over time and account for only a portion of the overall rise.
According to the authors, broader drivers are likely contributing to the increasing prevalence of mental disorders. These include genetic and biological influences, poverty, inequality, and the growing impact of global crises such as armed conflict, pandemics, natural disasters and climate-related stress.
While mental health conditions have long been a leading cause of disability worldwide, the report warns that the situation is worsening. At the same time, health systems have not expanded services at a pace matching demand.
The authors caution that the gap between rising need and limited access to care is becoming more pronounced, leaving millions without adequate treatment or support.
Health
Europe Records Sharp Rise in Sexually Transmitted Infections, ECDC Warns
Health
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