Health
New Study Finds LSD Shows Promise in Treating Anxiety Disorders
The psychedelic drug LSD has shown encouraging results in reducing symptoms of generalized anxiety disorder, according to a new study that could pave the way for its eventual medical approval in the United States. The research, conducted by biotechnology company Mindmed and published in the Journal of the American Medical Association, is the most significant evidence in decades supporting the therapeutic potential of LSD, which has been banned in the U.S. for more than 50 years.
The mid-stage clinical trial involved nearly 200 patients with moderate-to-severe anxiety. Participants received one of four doses of LSD or a placebo, administered under professional supervision. Researchers tracked the patients over three months to evaluate changes in anxiety levels. Results showed that patients who received the two highest doses of LSD reported significantly lower anxiety scores than those given placebo or lower doses. At the 12-week mark, 65 percent of those who received the most effective dose—100 micrograms—continued to show benefits, with nearly half in remission.
Dr. Maurizio Fava of Mass General Brigham Hospital, the study’s lead author and an adviser to Mindmed, said the findings were notable for their durability. “It’s possible that some people may need retreatment,” Fava said, “but the long-lasting effect is quite significant.”
The study also highlighted potential side effects, including hallucinations, nausea, and headaches. A further complication was that most participants were able to guess whether they had received LSD or placebo, raising questions about the integrity of the trial’s “blinded” design. Dropout rates were also high, narrowing the final data set.
Still, experts view the study as an important step forward. “I see this paper as a clear step in reviving old research, but with modern standards,” said Frederick Barrett, director of Johns Hopkins University’s Center for Psychedelic and Consciousness Research, who was not involved in the trial.
Interest in psychedelics as treatments for mental health conditions has surged in recent years. The U.S. Food and Drug Administration (FDA) has already granted “breakthrough therapy” status to psilocybin and MDMA, and LSD now joins the list of candidates. However, approval is far from guaranteed. Last year, the FDA rejected MDMA for treating PTSD, citing flaws in study methods and concerns about bias.
Unlike other psychedelic studies, which often combine drug treatment with extended talk therapy, Mindmed’s trial tested LSD alone, under supervision but without therapy sessions. That simpler approach may help regulators isolate the drug’s effects.
Mindmed has already launched two larger, late-stage studies designed to confirm these findings and assess how long the benefits last. If successful, the company plans to seek FDA approval.
Generalized anxiety disorder affects nearly 3 percent of U.S. adults, according to the National Institutes of Health. Current treatments include psychotherapy, antidepressants, and anti-anxiety medications such as benzodiazepines, though many patients struggle with limited effectiveness or side effects.
“LSD was always right there, but Mindmed is the first company to rigorously evaluate it in modern trials,” Fava said. “These results suggest it may hold real promise as a treatment option.”
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
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Health
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