Another thing with the early maturing of women is also caused by sanitation and physical health (not just the bad chemicles in food, etc.) Physical health here meaning you have enough to eat, drink, pleanty of rest, and exercise. Female bodies are triggered to prepare for puberty once their chemical balance says they are healthy enough to do so. So like 100 years ago it was far more likely to get your period at 16, and it gets younger every year. Then add on top of it all the chemicals and hormones we eat and it is like speeding up the process even worse!