50 Years Ago Health & Medicine

50 years ago, researchers thought Americans outgrew marijuana

Excerpt from the January 29, 1972 issue of Science News

a lady with grey hair examining some marijuana

Over the last 50 years, using marijuana has become more common among adults over age 25.

FatCamera/E+/Getty Images Plus

By Aimee Cunningham

- More than 2 years ago

cover of January 29, 1972 Science News

Marijuana commission finds usage high — Science News, January 29, 1972

Approximately 24 million Americans have used marijuana at least one time.