Come on, Nicotine and CO2 aren't even remotely close to the same sort of thing. It's quite true that nicotine is only responsible for a small part of the (direc

Come on, Nicotine and CO2 aren't even remotely close to the same sort of thing. It's quite true that nicotine is only responsible for a small part of the (direct) harm of cigarettes, but nicotine has a lot of bad effects that the linked article doesn't mention. A big one for young women are the adverse effects on fetal development. Because of addictivness of the drug, many pregnant mothers are unable to stop nicotine consumption during their pregancy. It's quite likely that there are useful applications of nicotine (even botox has uses!), but that doesn't mean the drug is safe for general use.