Phthalates are commonly used to make plastics more flexible. They are also estrogenic.
Parabens, PCBs, and pesticides are all other common entrants into the body with estrogenic effects.
( Reduced sperm count and sperm quality)
https://www.theguardian.com/us-news/2019/may/22/toxic-chemic...
The entire series is a good read, too:
Then there likely isn't one, beyond maybe natural evolution itself.
Remember when leaded gasoline reduced a whole generation's IQ by a few points and caused a crimewave? Sometimes the negative effects of an enviromental choice take decades to figure out.
That was actually a very noticeable effect that plenty of studies showed evidence of, unlike this one.
It's past time to switch into a "cautious until proven safe" way of thinking when it comes to health and environment.
We'd still be living like cavemen if that were the case.
For example men's spermcounts have been going down steadily and predictably for over 30 years, and are now HALF what they were 30 years ago. Scientists have done thousands of studies and haven't identified a root cause. (I bring this up because many plastics are made flexible with a xenoestrogen named BPA)
We can't say "Plastics must be fine," we have no control group to compare against. For all you know the increases in allergies, nearsightedness, autoimmune disorders, or reduced sperm count are related.
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Remember when leaded gasoline reduced a whole generation's IQ by a few points and caused a crimewave? Sometimes the negative effects of an enviromental choice take decades to figure out.
It's past time to switch into a "cautious until proven safe" way of thinking when it comes to health and environment.