Study: Marijuana use, and abuse, increases among young adults after legalization

Oregon legalized medical marijuana in 1998, and in 2015 it legalized recreational use, yet policymakers still know relatively little about the impact of the latter. A recent study by Oregon State University researchers and others shows that cannabis use has increased among college-aged Americans in states that legalized recreational use.

The researchers found that use among those in college only increased 1% after legalization, from 20% to 21%, while use among those not in college rose 5 percentage points, from 23% to 28%. 

Read more