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Med Hypotheses. 2008;70(5):1038-40. Epub 2007 Oct 1.

Androgenic alopecia may have evolved to protect men from prostate cancer by increasing skin exposure to ultraviolet radiation.

Author information

1
Department of Ecology, Faculty of Veterinary Science, AOTK, SZIE, Szent István University, P.O. Box 2, H-1400 Budapest, Hungary. peter.kabai@gmail.com

Abstract

Androgenic alopecia affects populations adapted to colder climate, and individuals at an age and hormonal status susceptible to prostate cancer. Male pattern baldness enhances absorption of UV radiation on the top of the head, an area directly exposed to sunlight during everyday activities. Ultraviolet radiation is reported to reduce the risk of advanced prostate cancer. Here I propose that progression of androgenic alopecia rather than being a risk factor is a finely tuned mechanism evolved to protect against prostate cancer.

PMID:
17910907
DOI:
10.1016/j.mehy.2007.07.044
[Indexed for MEDLINE]

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