What's your theory on why puberty starts earlier these days?

partially hormones in the food supply, but I also think it's the result of environmental polutants that mimic hormones.

for example recent studies are showing that the plastic "bisphenol A", which is used in everything from hard plastic water bottles to the lining of tin cans, leaches an estrogen like chemical into the food item it contains. like real hormones it's effective at minute doses and may be resulting in all sorts of hormone related problems from cancers to early onset puberty.

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Its not a theory but all the artificial hormones injected into the animals, etc...is the cause of early puberty.

Puberty appears to start when a child has a certain amount of body fat on them since we have so many overweight children it may be partly that. Also, because we feed the children so much better than previous generations I feel it plays a part in this too.

Well its quite simple, hormones in our food chain. They pump chickens and cattle with em so they grow faster and

bigger. We eat the food produced, incl. Milk(dairy) and these hormones, and chemicals act as estrogen producing earlier puberty. The long term health effects are far more

worse.

Obesity. The more fat a child has the sooner they begin to develop. That is what reports say anyway. I was a stick and started my period in the 4th grade. I wore a C cup in the 6th grade and still only weighed 90 pounds at 5'2" Genetics too I guess. My mom started at 8.

Global Warming

everyone below me has answered correctly, hormones in food milk ect, obesity in children, and fatty unnatural foods all play a part in it....this is such a sad thing for children and parents who knew kids would start to develop at ages 9 and 10....too much too soon

i believe that it has to do with what they feed the animals that we eat. They feed the cows and chickens hormones so they will be bigger and have more meat...

That filters down to us... more hormones = earlier puberty...

Purberty starts at different ages just as it ALWAYS has started at different ages. WAY back in the 50s there were girls entering pubrty "early"...my cousin was one of them, she was eight years old. I was 10, my younger siste was 15. Every child is different whether they were children in the 1940s, 1950s 1980s, or 2000s.