With that _massive_ disclaimer, check this out:
http://www.nytimes.com/2008/08/14/fashion/14SKIN.html
The setup: nicotine (which would be in cigarettes BUT ALSO in the patch and gum intended to help people stop smoking) makes blood vessels constrict. Tight blood vessels inhibit wound healing. Docs doing elective surgery HAVE to make sure there are the absolute minimum number of bad outcomes; docs doing cosmetic surgery HAVE to make sure things look good when they're done if they want to stay in business. So at least some docs who are doing elective, cosmetic surgery are insisting their clients stop smoking some amount of time before and after the surgery. They're writing scrip (Wellbutrin, Chantix, etc.) and referring to hypnotists.
This is a good thing, right?
Altho, a little disturbing. I don't mind dying, but if I can't have work done, _that's_ a problem?
On one level, this makes me really wonder about some of those dopamine researchers. Maybe they aren't measuring the right things. Maybe there's a big chunk of the population out there that doesn't give a flying fuck about their health, or their money -- but they do care a whole lot about how they look and how people respond to their looks. Wouldn't be the first time a researcher said these people aren't teachable when what was really going on was the researcher wasn't using the right approach.