Health
Playing Tetris May Reduce Trauma Flashbacks, Study Finds
New research suggests that playing the video game Tetris can help reduce intrusive memories of trauma, with symptoms significantly decreasing within weeks and many participants remaining symptom-free after six months. The study, published in The Lancet Psychiatry, tested a treatment called Imagery Competing Task Intervention (ICTI), which targets vivid, unwanted memories that are a core feature of post-traumatic stress disorder (PTSD).
The treatment was developed at Uppsala University in Sweden in collaboration with research organisation P1vital and trialled with the University of Cambridge and the University of Oxford. It focuses on psychological trauma such as witnessing sudden death or experiencing violent events, which can lead to involuntary flashbacks that disrupt daily life.
“Even a single, fleeting intrusive memory of past trauma can exert a powerful impact by hijacking attention and leaving people at the mercy of unwanted emotions,” said Emily Holmes, professor of psychology at Uppsala University and lead author of the study. She explained that ICTI works by weakening the intrusive aspect of sensory memories through a brief visual intervention, reducing the frequency and intensity of trauma flashbacks.
The trial involved healthcare workers who had experienced traumatic events during the COVID-19 pandemic. Participants were divided into three groups: one underwent the ICTI mental intervention, another listened to classical music, and the third received standard care.
Results showed a substantial reduction in intrusive memories among participants using ICTI, from an average of 14 per week to just one per week after four weeks—ten times fewer than the other groups. Six months later, 70 percent of the ICTI group reported being completely free of intrusive memories.
Holmes described the intervention as “gentle, brief, and practical,” designed to fit into participants’ busy lives. The treatment centres on Tetris, a game requiring players to rotate falling shapes to fit them into a grid. Participants first recalled a traumatic memory briefly, then applied mental rotation—a cognitive skill—to play Tetris for about 20 minutes per session. Occupying the brain’s visuospatial areas competes with the visual flashbacks, reducing their vividness, emotional impact, and frequency.
Beyond reducing intrusive images, the study found broader benefits for PTSD symptoms. Participants reported improvements in anxiety, depression, and overall functioning by the fourth week, regardless of initial PTSD severity. The researchers suggest that by addressing intrusive memories directly, other aspects of trauma-related distress can also be alleviated.
The findings indicate that a short, practical, and non-verbal intervention like Tetris-based ICTI could become an accessible tool for people struggling with trauma, offering hope for reducing flashbacks and improving daily life without lengthy therapy or medication.
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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