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

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. https://slatestarcodex.com/2018/11/07/marijuana-an-update/ https://slatestarcodex.com/2018/11/07/marijuana-an-update/