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Stress Makes Your Hair Go Gray Monday, June 15, 2009 - Ehud Rattner Home >> Headlines >> General Science   
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Those pesky graying hairs that tend to crop up with age really are signs of stress, reveals a new report in the journal Cell. Researchers have discovered that the kind of "genotoxic stress" that does damage to DNA depletes the melanocyte stem cells (MSCs) within hair follicles that are responsible for making those pigment-producing cells. Rather than dying off, when the going gets tough, those precious stem cells differentiate, forming fully mature melanocytes themselves. (source: sciencedirect.com)
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