Worded like that does not sound very convincing. A lot of things "can cause" the things mentioned (overwork, bad weather, etc.). Maybe the risk is high, but cle

Worded like that does not sound very convincing. A lot of things "can cause" the things mentioned (overwork, bad weather, etc.). Maybe the risk is high, but clearer numbers would help. There are countries were smoking marijuana is not that special (The Netherlands) and it is full of depressed people and is quite safe from traffic perspective.