Each month our editorial team sifts through hundreds of papers and curates notable findings—for practitioners and informed readers who want to stay current with the evidence. Subscribe to the monthly Research Digest for expert analysis and concise summaries of key papers.
97 papers
This study reviewed surveys and used global models to measure how the COVID-19 pandemic changed rates of major depressive disorder and anxiety disorders in 2020. It found that places with higher COVID-19 infection rates and bigger drops in movement had larger increases in these disorders. The authors estimate about 53.2…
The WHO Adult ADHD Self-Report Scale (ASRS) has 18 questions about recent ADHD symptoms, and a shorter six-question screener was tested against blind clinical diagnoses in 154 people from the US National Comorbidity Survey Replication. Each ASRS item was linked to the clinical rating, but agreement varied a lot across…
This study reviewed systematic reviews to measure death risks in major mental disorders. The authors screened 407 reviews and found 20 that reported mortality risks for 20 different disorders, covering over 1.7 million patients and more than a quarter of a million deaths. Every disorder showed higher all-cause death rates…
Anxiety disorders are a group of conditions marked by persistent, excessive fear or worry and behaviors (like avoidance) that cause real trouble in daily life. They are the most common class of psychiatric disorder — large surveys report that up to 33.7% of people will have one in their lifetime…
This review combined 143 studies (103 observational and 40 intervention) that looked at about 100 health outcomes to see how contact with greenspace relates to health. Overall, more greenspace exposure was linked with lower stress markers, lower heart rate and some lower blood pressure, and with lower risks for outcomes…
This study followed 1,604 U.S. adults older than 60 for six years. It found that people who said they felt lonely (43% of the group) were more likely to have worse day-to-day function and were more likely to die. After the researchers adjusted for age, wealth, living situation, depression, and…
This umbrella review pooled evidence from 97 systematic reviews (1,039 randomized trials, 128,119 participants) to examine whether physical activity affects symptoms of depression, anxiety and psychological distress in adults. Overall, physical activity produced medium-sized reductions in symptoms (median effect size for depression = -0.43, for anxiety = -0.42; distress effect…
This review found that eating disorders cause a large health and social burden. In 2017 eating disorders accounted for more than 3.3 million healthy years lost worldwide. Anorexia nervosa and bulimia nervosa show rising disability, higher death rates (especially after inpatient treatment for anorexia), lower quality of life, higher costs,…
A U.S. study reported that depression became more common between 2005 and 2015. The rise was faster for young people than for older adults. The study also found growing gaps in depression rates for vulnerable groups. The authors say we do not yet know a single cause and that more…
This review says adult ADHD affects about 2.5% of adults and often occurs with other mental health problems. Adults with ADHD commonly have trouble with attention, memory, planning, self-control, and emotions. The condition is often missed or undertreated, is linked with big personal and social problems, and the evidence on…
Borderline personality disorder (BPD) is a serious mental illness marked by big problems with emotion control, impulsive acts, and unstable self-image and relationships. Many people with BPD hurt themselves or try suicide (recurrent suicidal behaviour in about 69–80% and suicide rates up to 10%). Mentalization-based treatment (MBT) was developed to…
Folic acid is a stable, synthetic form of the vitamin folate. Taking folic acid around the time of conception lowers the chance of neural tube birth defects (NTDs). Many countries have added folic acid to flour and other foods. These fortification programs have been linked with large drops in NTDs,…
