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.
This U.S. study used a nationally representative household survey of 3,199 adults aged 18–44, plus clinical follow-up interviews, to measure adult ADHD. Researchers estimated that 4.4% of adults had current ADHD. Adult ADHD was more common in men, people who were previously married, those who were unemployed, and non-Hispanic white…
This ADDA article explains ADHD masking — when people hide or copy others to appear "normal." Masking can help someone function but often uses a lot of mental and emotional energy. The article says masking can delay diagnosis, cause burnout or mood problems, and may help explain why women are…
This study reexamined gender differences in adult ADHD by comparing 219 adults with ADHD to 215 control subjects matched for age and gender. The researchers found no evidence that gender changed how ADHD related to other psychiatric disorders. Adults with ADHD showed cognitive deficits and higher rates of major depression,…
This study followed a nationally representative group of U.S. children who started kindergarten in 1998–99 to track ADHD diagnosis from kindergarten through eighth grade. It found that racial and ethnic minority children were less likely than white children to be diagnosed by kindergarten and that these differences continued through eighth…
The authors combined results from 42 studies of people in prison to estimate how common ADHD is in those groups. Using formal diagnostic interviews, the overall ADHD rate was about 25.5%. Reported rates were higher when studies used screening tools or when adults recalled childhood ADHD. The review found much…
Cognitive behavioral therapy (CBT) is one of the most-studied treatments for alcohol and drug problems. Reviews of many trials find a small but real average benefit: a meta-analysis of 53 controlled trials reported an effect size of g = 0.15 and estimated that 58% of people given CBT did better…
This paper is a systematic review of 74 English-language studies from 1995–2019 that looked at how postpartum stress, including depressive and anxiety symptoms in mothers, is linked to infant outcomes. The review found consistent associations between higher postpartum stress and worse infant growth, development, feeding, attachment and sleep. The authors…
Researchers gave 10 adults placebo cigarettes and three active marijuana cigarettes (including a 3.58% Delta9-THC dose) in a repeated-measures lab test. Using a task that forced a choice between a risky and a nonrisky option, the highest THC dose made people choose the risky option more often. The same high…
Researchers reviewed records from 1,130 people with bipolar disorder seen at a mood-disorders center. They found that depressive episodes lasted much longer than manic episodes, and that episode length was similar across bipolar subtypes (BD-I, BD-II, mixed, or with psychosis). The authors say this pattern — more and longer depressions…
Postpartum depression (PPD) is a common problem after childbirth. Most studies find rates around 10%–15% in high-income countries, and rates can be much higher in poorer settings. Untreated PPD is linked with problems in mother–baby bonding and with worse child development. Screening in routine obstetric, pediatric, or primary care visits…
This systematic review looked at human studies of cannabidiol (CBD) for anxiety up to June 2019. Eight studies were included (6 small randomized controlled trials, 1 case series, and 1 case report). The studies tested CBD for anxiety in healthy volunteers, generalized anxiety disorder, social anxiety disorder, and PTSD-related anxiety.…
This systematic review looked at what happens when women live with undiagnosed ADHD and what changes after they get diagnosed as adults. The authors searched three databases and kept eight studies. They used thematic analysis and found four main themes: harms to social and emotional wellbeing, hard or strained relationships,…
