Tópico: Fumantes podem ficar carecas de saber que o cigarro faz mal empiricamente

[Buckaroo Banzai]

The Claim: Smoking Can Cause the Loss of Hair
By ANAHAD O’CONNOR
Published: May 20, 2008

THE FACTS

[...]

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.

Last year, another team studied the link in a group of 740 men in Taiwan, aged 40 to 91 years, notable because Asian men generally have low rates of hereditary baldness. After controlling for age and family histories, the researchers found a greater rate of hair loss among the smokers, a risk that grew with increasing smoking.

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.

[...]

http://www.nytimes.com/2008/05/20/health/20real.html?em&ex=1211947200&en=f67f8a51832f0b7a&ei=5087%0A