Quote:
Heroin, crack cocaine and methamphetamine, or crystal meth, were the most lethal to individuals. When considering their wider social effects, alcohol, heroin and crack cocaine were the deadliest.
They seems to take the social effects as a "lethal" factor. Yes, it can bring suicides. But 'lethal' for me is directly linked to the consumption of the substance. Like overdoses, infections, etc.
I've been a few times in parties where people were smoking crack. Personally, it was MUCH worst on social effects than alcohol. They are zombies just wanting more and right now.