[little jeremiah]

God has nothing to do with it. The normal age for onset of menstruation was 17 until the last quarter of the 19th Century. Then onset began earlier and earlier until today, where onset may occur as early as age 9.

The scientific community suspects that industrial pollutants are responsible for the earlier onset. It falls into the same category as the suspicion that estrogen-like chemicals in plastic containers are responsible for lower and lower sperm counts.

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I was surprised to see the above. I did a quick search and several articles support that the average age of menarch varied with different eras. The later age (17) was thought to be due to times of malnutrition. Earlier, ie Roman times, average age appeared to be 13-14. At times the town girls with more to eat had earlier than the hungry peasants.

So it seems to have varied throughout what recorded history there is on this topic. The chemicals I’m sure are at play and also such chemicals do much other harm as well.

[numberonepal]

Either way it all comes down to nutrition.

[tang-soo]

I was surprised to see the above. I did a quick search and several articles support that the average age of menarch varied with different eras. The later age (17) was thought to be due to times of malnutrition. Earlier, ie Roman times, average age appeared to be 13-14. At times the town girls with more to eat had earlier than the hungry peasants.

So it seems to have varied throughout what recorded history there is on this topic. The chemicals I’m sure are at play and also such chemicals do much other harm as well.

BGH - Bovine Growth Hormone in cattle in order to produce more milk and for a longer period of time?