Solving a biological puzzle: How stress causes gray hair

ScienceDaily
Jan 22, 2020, 1:53 pm169 pts
Scientists have found evidence to support long-standing anecdotes that stress causes hair graying. Researchers found that in mice, the type of nerve involved in the fight-or-flight response causes permanent damage to the pigment-regenerating stem cells in the hair follicle. The findings advance knowledge of how…

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