Smoking may cause your bad hair days

KNIGHT RIDDERV NEWSPAPERS
It's no secret smoking is bad for your lungs and skin. Now it seems it may not do much for your hair as well.
Allure magazine reports on a study at University Hospital in Zurich, Switzerland, that found 13 of 23 underage smokers had gray hair. A group of 32 non-smokers had no gray hair.
The chemicals in the smoke may damage DNA in hair follicle cells and constrict blood vessels that supply the follicles, writes skin specialist Ralph M. Trueb in the journal Dermatology. The hair not only may lose pigment and gray but -- yikes -- also fall out.