James Keys and Tunde Ogunlana take a look at some recent research that suggests marijuana use may be connected to some serious health problems, including life threatening cardiovascular issues, and consider whether this means that legalization efforts have been misguided or counterproductive.

Smoking weed and consuming THC-laced edibles linked to early heart disease, study finds (CNN)

Cannabis Use Is Linked to Epigenetic Changes, Scientists Discover (Science Alert)