Ologies with Alie Ward Smologies #40: HAIR with Valerie Horsley
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Mar 18, 2024 Discover the intricate world of hair with a Yale researcher. Explore the science of hair growth, stem cells, genetic influences, varying hair types, and the importance of hair in animals. Delve into the biology of hair follicles, the role of melanin in coloration, and the fascinating parallels between nails and hair growth.
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Skin Regeneration
- Skin regenerates quickly due to constant environmental damage.
- It acts as a smart protective barrier, adjusting to factors like sun exposure.
Hair Function
- Hair is a protective appendage growing from epidermal cells.
- It serves functions like warmth and potentially social selection.
Hair Growth Cycle
- Hair growth is determined by the hair cycle's growth phase length.
- Head hair grows for years while other body hair has shorter cycles.