Human Growth and Development / Unit 15 HGD 2113 short lesson, about 20 seconds
Skin and Hair
Captions available
The idea
Skin thins, dries and loses elasticity with age, and sun exposure is the largest modifiable factor.
In practice
Greying from lost melanin beginning around the mid-thirties for White individuals and the mid-forties for Black individuals.
Where people slip
Hair loss is largely genetic and more common in men, primary aging more than secondary.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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