
Losing Your Hair? You Might Blame the Great Stem Cell Escape.
Every person, every mouse, every dog, has one unmistakable sign of aging: hair loss. But why does that happen? Rui Yi, a professor of pathology at Northwestern University, set out to answer the question. A generally accepted hypothesis about stem cells says they replenish tissues and organs, including hair, but they will eventually be exhausted and then die in place. […]
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