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The Claim: Smoking Can Cause the Loss of Hair 

Scientists have long speculated cigarette smoke may accelerate hair loss and premature graying. The association was largely attributed to toxins in smoke that can harm hair follicles and damage hormones. According to epidemiological studies, that appears to be the case. A report in the journal BMJ looked at more than 600 men and women, half of them smokers. After controlling for variables, the researchers found a “significant” and “consistent” link between smoking and early graying. . . .

One question is whether the link is a result of tobacco toxins directly affecting the scalp, or of smoking’s causing severe disease that speeds aging.

THE BOTTOM LINE

Several studies suggest smoking can lead to premature graying and hair loss.

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