The Science of Hair Follicles

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Exploring the intricate details of hair follicles, this chapter covers topics such as the hair regeneration cycle, hair color variations, stem cell extraction from follicles, melanin's role in coloration, genetic influences on red beards, gray hair mechanisms, stress effects on hair color, pigment absorption during growth, and the growth rates of hair and nails.

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Peach fuzz. Chin hairs. Mammalian ponytails. WHY DO THEY HAPPEN. Yale researcher and associate professor Dr. Valerie Horsley stops by California to chat with Alie about the nature of hair and what it has to do with skin and nails, stem cells, how it grows, why some of us have curly hair or straight hair or thin hair or thick hair, and why we love and hate and need our hair as animals.

Dr. Valerie Horsely is on Facebook

The Horsely Lab at Yale

Full-length (*not* G-rated) Trichology episode + tons of science links

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Sound editing by Mercedes Maitland of Maitland Audio Productions and Steven Ray Morris

Made possible by work from Noel Dilworth, Susan Hale, Kelly R. Dwyer & Erin Talbert

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