Cigarettes may be useful for distance runners

...and here's the Canadian Medical Association Journal article to "prove" it.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3001541/

Commentary:

Cigarettes may be useful for distance runners?!? (or, How to prove anything with a review article)

Stay skeptical folks, and that goes equally to wacky alternatives and conventional medicine.