Quote:
Originally Posted by slipcovers
Drive by any hospital and see how many nurses are outside smoking. I worked with a doctor that was in a study, taking an aspirin a day. However, he smoked 2 packs a day. Studies don't give the whole picture. I was 120 pounds at 21, I would look anorexic today at that weight.
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Yes, nurses represent a cross section of the population. Some smoke and some don't although we don't know if they accepted smokers to participate in the nurses study. In most of these big studies (whether doctors or nurses) they have a way to account or adjust for these things. If you can think of it, they've thought of it too.
I think I did read something related to smoking. I believe it said something to the effect that the lower the BMI the better, as long as it's not associated with disease. So, for example, if someone was a heavy smoker and died thin of lung disease, it wouldn't count against being thin. It would count against smoking.