The negative health affects are definitely there: https://www.youtube.com/watch?v=yewlM8CtbQU

But that does not mean that we should not legalize it. I would even argue they are THE reason why we should legalize. A legal market is a regulated market, which lets you minimize the negative health effects by controlling what is actually being sold.

I agree, it probably is to be used with caution. I guess most people would know that. Same case with alcohol.

Anytime the topic is brought up I bring up the term "stoner" and leave it at that. Something about too much use of the stuff is definitely wrong and not researched enough.

Too much water will kill you eventually. Funnily enough, we know how much water it takes to kill you, but we haven't discovered that limit on cannabis yet... but there surely is one.

In any case, the question isn't so much how it affects you while it's active, but how it affects you long-term. Transitory effects of any nature are not a concern, unless we're talking about rage fits or other behavioral changes that are actively and directly harmful to others.

The research is at its very basic level now. There are many different types with different affects. Studies that generalize all strains are inheritly flawed.

It will take awhile for accurate research to produce hard truths

Well, at my high school, the "stoners" were also drinking, sniffing glue, eating nutmeg, smoking banana peels, etc. In adult life, the few people I've met who only smoke weed have been pretty level-headed. There's some selection bias because I try to avoid people who appear to be of the glue-sniffing variety. Maybe they're just big reefer junkies after all.

I wouldn't call adults who casually smoke weed stoners though. We're talking about people who are long-term or chain smokers. High school pot smokers do not yet show the long-term signs of marijuana use typically.

Too much of it is wrong. Even Ambrosia, as the saying goes. Can be reasonably sure Pharma companies have done research over it. After all, it's in their interest if it appears bad. But they also use some of its contents. THC for instance. Seems good business.