Each has its own parameters... ranging from 'getting out to lunch' occasionally or more, to occasional in social (and often safe) settings or for some 'topping up' moderately throughout the day.

I suspect the peredontal downside is deserving of more research around the mode of use and set and setting. The gold standard NZ studies (there are two, one longitudinal and one multidisciplinary) are conducted in a context of a heavily enforced prohibition against which four out of five childbearing age adults in the study have used cannabis illegally more than five times.

The illegal status itself leads to significant downsides in outcomes, both mentally, socially and physically. Clearly, there is more to be learned but to discuss health outcomes from this body of research without stating that this research is from a cohort that endures a social set that fosters paranoia, overt and covert prejudice, penalisation, corruption and mistrust is disingenuous if not perverse.

I, along with other researchers (and consumers) argue that whatever downsides do exist they are offset by displacement of other more harmful activities/ingestable's.

Alcohol manufacturers, distributors, marketers and oversight bodies such as ALAC know this. The medical professions reservations about cannabis are at odds with the social burden Alcohol alone contributes.