Human Growth and Development / Unit 9 HGD 1223 short lesson, about 20 seconds
Family Stress and Timing
Captions available
The idea
Family stress may accelerate puberty: father absence and low family income have predicted earlier puberty in studies in Korea, the United States and Canada.
In practice
Korean boys without a father at home reaching spermarche about three months earlier.
Where people slip
These are associations; in low-resource settings, by contrast, undernutrition can delay puberty.
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