Lemmy, how bad for an individual can consuming cannabis be?

I’m talking about any thing that can be produced from cannabis of any strain, not laced and not something that’s glycol-based or a dry-plant vaporizer; and consumed via inhalation of it’s smoke or digestion (ex: edibles). Not discussing the legality of it or any other unnecessary nuances, just the benefits and harm of it. Studies are extremely encouraged btw. =p