A landmark meta-analysis has failed to show that medicinal cannabis helps with anxiety, the second-most common indication for cannabis in Australia. Australian and UK researchers have reviewed 54 studies published between 1980 and 2025 on the efficacy of cannabinoids for mental health conditions, with 2477 total participants. Their results, published in The Lancet Psychiatry this week, showed … Read more
Can cannabis affect the aging brain? A large-scale study recently published points to a surprising connection between cannabis use in older age and certain indicators of brain health and cognitive functioning. The study was based on data from the British Biobank database and included 26,362 participants aged 40 to 77, with an average age of … Read more
A major study of US veterans suggests that GLP-1 diabetes medications may influence addiction-related outcomes, revealing a surprising connection between metabolic treatments and substance use risk. Study: Glucagon-like peptide-1 receptor agonists and risk of substance use disorders among US veterans with type 2 diabetes: cohort study. Image Credit: Kotcha K / Shutterstock A recent study … Read more
Their job is to protect, promote, and restore human health and lives, but healthcare workers believe that their own use of alcohol and illegal drugs reduces the quality of care they provide to patients. A recent study suggests that more doctors and nurses struggle with substance use than we are aware of. There is a … Read more
An analysis of 35,000 Canadians shows that rising cannabis use and worsening mental‑health symptoms are increasingly appearing together, with the connection between the two strengthening over time. The study, led by McMaster University and published in The Canadian Journal of Psychiatry on Feb. 25, 2026, analyzed data from two large, nationally representative Statistics Canada surveys … Read more
A new study published in the journal Addiction shows that cannabis use among Swedish adolescents appears to follow the same population-level pattern previously observed for alcohol. The findings suggest that changes in average cannabis use among young people are reflected across the entire group-from those who use infrequently to those who use frequently. The study … Read more
Adolescents who use cannabis could face a significantly higher risk of developing serious psychiatric disorders by young adulthood, according to a large new study published today in JAMA Health Forum. The longitudinal study followed 463,396 adolescents ages 13 to 17 through age 26 and found that past-year cannabis use during adolescence was associated with a … Read more
The urgent onset of “the munchies” after cannabis use isn’t imaginary – it’s a cognitive response that occurs regardless of sex, age, weight or recent food consumption and could offer clues to help people struggling with appetite loss. Those findings from a collaborative study, conducted by researchers at Washington State University and the University of … Read more
A study led by researchers at University of California San Diego School of Medicine reveals higher rates of substance use among all non‑heterosexual groups in the U.S., including people who are uncertain of or who use different terms to describe their sexual identity. The analysis was based on the 2023 National Survey on Drug Use … Read more
The legalization of cannabis and the start of retail sales of the drug in the US are linked to both a rise in its recreational use and concurrent use of tobacco, as well as a fall in sole tobacco use, finds an analysis of health behavioral data, published online in the journal Tobacco Control. These patterns … Read more