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

Some research has shown that soy consumption in early childhood may lead to earlier puberty, at least in girls. As we’ve been increasing our soy consumption over the past decades, this may play a role.

Link to one such study: [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3443957/](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3443957/)

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