Scientists Uncover Worrying Link Between Frequent Cannabis Use and Seizures

Cannabis has arguably become the most popular recreational drug in the U.S. in recent years—with more Americans now consuming it daily than cigarette smoking and even alcohol. Research out today highlights a possible dark side to frequent cannabis use for at least some people, however: a greater risk of worsening seizures.

Researchers at the Washington University School of Medicine in St. Louis studied people with treatment-resistant epilepsy, and found that people who reported frequent cannabis use were more likely to…