It’s strange that all of the comments are looking for ways to dismiss this result (and this seems to happen generally with negative cannabis findings online). Is it not entirely possible a drug and method of consumption which stresses the cardiovascular system increases odds of an adverse cardiovascular event?
This in itself dismisses the credibility of the proponents in my mind.
The funny thing is you don’t see this with alcoholics. They know what they’re doing is bad and admit it easily but can’t stop.