Proponents of cannabis have long been outspoken about its medicinal benefits (e.g. pain/nausea relief), but some potential uses of the plant are more surprising—and very intriguing. Psychiatrist Dr. Julie Holland, a psychopharmacology specialist who has run a private psychiatric practice in Manhattan for more than two decades, has found that the effects of cannabis may be particularly adept at treating hormonal and emotional issues that are common among women.