“Repeated use of small quantities of the psychedelic substance psilocybin can improve mood and mental health, a new study suggests. Researchers found that people who microdosed psilocybin saw “small- to medium-sized” improvements in symptoms of depression, anxiety, and stress over a 30-day follow-up, compared to those who did not.This observational study, published June 30 in Nature-Scientific ReportsTrusted Source, included over 900 people who reported microdosing psilocybin during the past month, and a control group of 180 people who did not engage in microdosing psychedelics.“This is the largest longitudinal study of this kind to date of microdosing psilocybin and one of the few studies to engage a control group,” study author Zach Walsh, PhD, a professor of psychology at the University of British Columbia Okanagan Campus in Kelowna, said in a press release. “The results add to the growing conversation about the therapeutic potential of microdosing,” he added.”