The researchers must have been partaking as well.
“Marijuana, the most widely used illicit drug, may double stroke risk in young adults, according to research presented at the American Stroke Association’s International Stroke Conference 2013.”
But is a 55-year old a “young adult”? Also, this study is very small, with only about 12 more strokes among the “cases” (which could be 55 years of age!).