Cannabis use carries a risk of psychosis, even at low THC concentrations, and modern cannabis is more potent.

“so the you know 10-word summary of of the Cannabis thing is that the ratio of THC to CBD is important it is true that a lot of cannabis has much much higher levels of THC now than in the past although I'm told that high THC level cannabis always existed — but it seemed to be the concentration of THC that is of let's just say concern as it relates to the potential development of psychosis — if there's a predisposition — as in terms of the uh how addictive the Cannabis is and so on and so forth which is not to say that CBD is totally innocuous but it seems to be like the THC concentration is the kind of the thing that to mainly focus on”