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Puberty Starts Earlier Than It Used To. No One Knows Why

nytimes.com

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Re: Puberty Starts Earlier Than It Used To. No One Knows Why

#4
Arm-chair Quarterback statement is about to follow - Better (different?) nutrition definitely plays a role (see disclaimer) but it also lead me to wonder if the issue affecting the Californian Condors could be a factor [See 1].

As apex predators they have elevated levels of endocrine-disrupting chemicals. Since we (humans) are also pretty much an apex predator across a wide range of species it is an almost certainly we have the same sorts of problems

[1] "A New Study has found contaminants that were banned decades ago are still imperilling critically endangered California condors" (https://newscenter.sdsu.edu/sdsu_newscenter/news_story.aspx?...)

Re: Puberty Starts Earlier Than It Used To. No One Knows Why

#5
post #3

Puberty starts earlier than it used to *for girls*. Which surely points towards plastics and phytoestrogens in food as being the much more likely cause than improved nutrition or obesity which would affects both boys and girls equally.

> Which surely points towards plastics and phytoestrogens in food as being the much more likely caus

How are you so confident about this maybe-correlation? It seems FUDish and overconfident without the data to back it up.

All we can say for now is that we don't really know why the average age is on the decline. There are a lot of variables.

Re: Puberty Starts Earlier Than It Used To. No One Knows Why

#6
post #5
post #3

Puberty starts earlier than it used to *for girls*. Which surely points towards plastics and phytoestrogens in food as being the much more likely cause than improved nutrition or obesity which would affects both boys and girls equally.

> Which surely points towards plastics and phytoestrogens in food as being the much more likely caus How are you so confident about this maybe-correlation? It seems FUDish and overconfident without the data to back it up. All we can say for now is that we don't really know why the average age is on the decline. There are a lot of variables.

We have known that certain plastics mimic estrogen in the body for well over 10 years now. BPA is banned for use in baby products in most western countries for this exact reason, but is still present in thermal receipts and the majority of food and drink cans.

Re: Puberty Starts Earlier Than It Used To. No One Knows Why

#7
post #6
post #5

Earlier quoted context omitted.

> Which surely points towards plastics and phytoestrogens in food as being the much more likely caus How are you so confident about this maybe-correlation? It seems FUDish and overconfident without the data to back it up. All we can say for now is that we don't really know why the average age is on the decline. There are a lot of variables.

We have known that certain plastics mimic estrogen in the body for well over 10 years now. BPA is banned for use in baby products in most western countries for this exact reason, but is still present in thermal receipts and the majority of food and drink cans.

Thanks for the clarification, Crabber.

Re: Puberty Starts Earlier Than It Used To. No One Knows Why

#9
I had distinct memories of HGH in milk having been identified as the cause of this, but apparently that has been disproven: https://www.nytimes.com/2005/03/08/health/the-claim-hormones...

It's a bit startling how quickly it seems to be advancing, though: this 2005 article is saying girls were becoming pubescent "between 9 and 10, roughly a year early". It's only taken a couple decades for that to have turned into "...mostly of girls who were developing breasts at 7 or 8 years old" and "as early as 6 and 7"

Re: Puberty Starts Earlier Than It Used To. No One Knows Why

#10
https://en.wikipedia.org/wiki/Endocrine_disruptor

hyper-industrialization of the food industry is the reason why

you are, and as a species you become something based on what you eat

you change what your species used to eat, you evolve into something else

that's chemicals and how evolution works

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