Why puberty starts earlier nowadays?

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I’ve seen a study which found that the age of puberty (especially female puberty) is dropping rapidly. In 1860 it started around 16.8 and in 2010 it was 10.8. Why is that? Is there any explanation?

In: Biology

39 Answers

Anonymous 0 Comments

Obesity rates have gone up which has been shown to be a factor in early puberty in girls since girls need at least 20% body fat before they can start their periods

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