More U.S. teens shunning drugs, alcohol

(HealthDay)—Over the last four decades, more American teenagers have decided to say no to drugs and alcohol, a new report shows.

“There has been a steady increase in the proportion of students graduating high school who report never having tried alcohol, marijuana, tobacco or any other drugs,” said study author Dr. Sharon Levy. She directs the adolescent substance use and addiction program at Boston Children’s Hospital.

For example, while about 5 percent of high school seniors had embraced abstinence in 1976, that figure had risen to 25 percent in 2014, according to the most recent poll of nearly 12,000 students.

Surveys conducted among 8th and 10th graders between 1991 and 2014 unearthed a similar trend, with abstinence jumping from roughly 10 percent to almost 40 percent among the former, and from 25 percent to more than 60 percent among the latter.

There was also a jump in…

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