Why do men go bald more than women? The answer starts 2,400 years ago with Hippocrates and ends inside a single hair follicle: the same hormone that grows a man's beard also shrinks the hair on his scalp.

In this video, you'll see how the hormone DHT, your hair follicles, your genes, and female biology fit together to explain male pattern baldness and why women lose hair differently.

CHAPTERS
0:00 Why your hairline moves
0:42 Piece 1: The hormone
2:16 Piece 2: The follicle
3:35 The beard paradox
4:27 Piece 3: The genes
5:14 Piece 4: Why women lose less hair
6:46 The full picture

WHAT YOU'LL LEARN
Why castrated men in ancient Greece and 1940s Kansas kept their hair
How a village in the Dominican Republic led to a hair loss drug
How DHT shrinks a follicle without destroying it
Why bald men do not necessarily have more testosterone
How 287 gene regions shape your hairline
Why women have fewer receptors and more of an enzyme that turns testosterone into estrogen

SOURCES (search these to read the research)
James Hamilton, 1940s studies on castration and male pattern baldness
Julian Imperato-McGinley et al., 1974, 5-alpha-reductase deficiency in Salinas, Dominican Republic
Hagenaars et al., 2017, hair loss genetics in over 52,000 British men (PLOS Genetics)
Norwood, 2001, prevalence of female pattern hair loss
Sawaya and Price, 1997, androgen receptors and enzymes in scalp follicles

This video is for education and is not medical advice. If you're worried about hair loss, talk to a doctor or dermatologist.

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#Baldness #HairLoss #ScienceExplained