Teenagers are more likely than young adults to become addicted to marijuana or prescription drugs within a year after trying them for the first time, according to a new study by the National Institute on Drug Abuse.

The new report, published Monday in the peer-reviewed journal JAMA pediatrics, adds to mounting evidence showing adolescents are more vulnerable to substance use disorders than young adults, increasing the need for early screening and drug prevention education, health experts say.

"We know that young people are more vulnerable to developing substance use disorders," said Dr. Nora Volkow, NIDA director and lead author of the study analysis. "Though not everybody who uses a drug will develop addiction, adolescents may develop addiction faster than adults."

Researchers at the NIDA, a part of the National Institutes of Health, analyzed data from the nationally representative National Surveys on Drug Use and Health conducted by the Substance Abuse and Mental Health Services from 2015 to 2018.

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