An activist holds a placard depicting cannabis leaves during a protest in Kyiv in May 2017. Ukraine is moving closer to legalizing medical cannabis, fueled in part by Russia's war. Sergei Supinsky/AFP via Getty Images hide caption
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More than 30 states have medical marijuana programs — yet scientists are only allowed to use cannabis plants from one U.S. source for their research. That's set to change, as the federal government begins to add more growers to the mix. Drew Angerer/Getty Images hide caption
Dr. Julie Holland, author of the new book, Good Chemistry, says that when patients taking antidepressants have stopped experiencing relief, psychedelic drugs might be used in conjunction with talk therapy to help some work through past traumas. Milos Zivkovic/EyeEm/Getty Images hide caption
Psychiatrist Explores Possible Benefits Of Treating PTSD With Ecstasy Or Cannabis
Maryland now offers the country's first master's degree in the study of the science and therapeutics of cannabis. Pictured, an employee places a bud into a bottle for a customer at a weed dispensary in Denver, Colo. Bloomberg via Getty Images hide caption
Scientists caution that using marijuana during pregnancy could be risky, but some women with severe nausea and lack of appetite during pregnancy are trying it. Niklas Skur/EyeEm/Getty Images hide caption