- At least two cases of stress cardiomyopathy have been linked to marijuana use, doctor says
- Researchers found a statistically significant relationship between the drug and stress cardiomyopathy
(CNN)Just last week, five more states voted to legalize recreational marijuana, but users may want to be cautious. A study released Sunday suggests that marijuana use can weaken heart muscles, particularly in young men. The study was presented at the annual scientific conference of the American Heart Association in New Orleans.