Study: Most Teens Think Occasional Weed Use OK

Teenagers' perception of the dangers of marijuana has fallen to the lowest level in more than 20 years, a new study says, prompting federal researchers to warn that already high use of the drug could increase as more states move to legalize it.

The annual survey released Wednesday by the National Institutes of Health found that only 41.7 percent of eighth graders believe that occasional use of marijuana is harmful, while 66.9 percent regard it as dangerous when used regularly. Both rates are the lowest since 1991, when the government first began tracking this age group.
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