By Dan Cossins
For some men, few things are more worrisome than the daily sight of an ever-receding hairline in the bathroom mirror, or the peach-fuzz feel of a thinning crown. This creeping nemesis—known as male-pattern baldness or androgenetic alopecia—emerges in genetically predisposed individuals when a by-product of testosterone called dihydrotestosterone (DHT) causes hair follicles on the scalp to shrink, producing ever thinner hairs, until the follicles eventually lose the capacity to produce hair that protrudes above the surface of the skin.
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Researchers identify molecular pathways related to baldness and are working to manipulate them
