i have no problems with marihuana- i smoke it occasionally with my friends and there's nothing to say against it- the problem with me smoking is that i'm strict nonsmoker - i think it's less dangerous than alkohol and cigarettes n my oppinion- no hangover the next morning and from the effect it's not so "heavy" as being drunk-
for sure if you exaggerate it you 'll kill your brain but i think alcohol is more aggressiv...
little advise: NEVER smoke a pure stick when you've got a cold!!! i was in heaven for 2 days and i was so scared... it was wicked