A strange little story in the paper: there is a correlation between heart disease & the level of nicotine in toe nails (of American nurses)
Now I could, if it is free on the web, consult the journal which published the original article, but it is more fun just to speculate
Whatever gave the researchers the idea to look in to this? A sneaky way to check answers to questions about smoking? Just part of a wider check on the diagnostic value of toe clippings, cheaper than blood tests?
Or testing the hypothesis that nicotine migrates to the toenails when the heart is in trouble – it falls down but cannot climb back up again?
