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Marijuana use: More older Americans reaching for weed

More middle aged and older adults are using marijuana and turning to it often, according to a study out this month in the journal Drug and Alcohol Dependence.

Many of the older Americans turning to marijuana are new converts to its use, something Dr. Benjamin Han,  lead author of the study, found surprising, NPR reported. Han is an assistant professor of internal medicine at New York University School of Medicine.

About 45 percent of those over 65 who use the drug said they got started after the age of 21, the study found. More study details in video above.

The survey also found that  9 percent of U.S. adults between ages 50 and 64 used marijuana, up from 7 percent in 2013, according NPR's report.  In the current survey, it was 3 percent of those  older than 65 using pot, up from 1.3 percent.