Older adults use cannabis primarily for medical purposes to treat a variety of common health conditions, including pain, sleep disturbances and psychiatric conditions like anxiety and depression, reported (UC) San Diego School of Medicine. The study was published online in the Journal of the American Geriatrics Society. With growing interest in its potential health benefits and new legislation favoring legalization in more states, cannabis use is becoming more common among older adults. The study surveyed 568 patients, of which, 15 per cent had used cannabis within the past three years, with half of the users reporting using it regularly and mostly for medical purposes. Patients surveyed in the study were seen at the Medicine for Seniors Clinic at UC San Diego Health over a period of 10 weeks. The researchers also found that 61 per cent of the patients who used cannabis had initiated use after age 60. The researchers said future studies are imperative to better understand the efficacy and safety of different formulations of cannabis in treating common conditions in older adults, both to maximize benefit and minimize harm.