This isn't a long term health effect per se, but it is a health issue.
>A study by the Highway Loss Data Institute in June of last year finds that states that legalized marijuana saw insurance claims for auto accidents increase about 3% over the general national trend for the time. An updated study by the same group finds 6% according to insurance claims, and 5.2% according to police reports.
I was referring to alcohol, not marijuana.
Are you at all inclined to share sources of this? After reading this long article posted that essentially says "we don't have enough evidence, there's not enough studies being done", someone saying there are well-known problems has me wanting to read more and not just take their word for it.