Researchers who study marijuana made a number of findings in 2015, from learning about the health effects of using the drug frequently and recreationally, to figuring out which diseases and conditions are most likely to benefit from the substance’s use. The findings about marijuana that came out this year advanced the science, even if only incrementally, said Alan Budney, a professor of psychiatry at the Geisel School of Medicine at Dartmouth in Lebanon, New Hampshire, who studies behavioral treatments for reducing or quitting marijuana use. “It was perhaps more of a year of identifying important questions in need of answers,” he said. A current major area of research investigates how the changing laws in some states governing marijuana use will affect rates of the drug’s use, including rates of problematic use, Budney said. “A study this year published in the journal JAMA Psychiatry raised lots of eyebrows when it found a doubling of marijuana use among American adults and almost a doubling of problematic use between 2002 and 2013,” Budney told Live Science. Earlier studies of adult marijuana use had showed a much smaller increase. Researchers are now wondering whether increased marijuana use will bring more problems, or if it… Read full this story
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