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US girls got their first periods increasingly earlier over the last 50 years, new study finds
(www.theguardian.com)
this post was submitted on 29 May 2024
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Plastic
Or better nutrition. Hmm, what's the real reason behind acceleration. Who knows, right?
RTFA. Younger onset of puberty is associated with lower economic status, which means worse nutrition.
There's tons of factors more than just nutrition. Stress is a big one. My 9yo niece just got hers, and they've got plenty of money and eat well. Came shortly after they found out her dad is riddled with cancer all over his body.
i remember years ago an article said it was from eating pork (genetically quite similar to human) which had tons of hormones injected so they would grow up faster for more profit turnover. i wonder if theres puberty age data from groups that dont eat pork.
I mean you can probably find something for Muslims if you look at data from a Muslim majority country.