This exact thing is discussed in detail in the book OP referenced, it's excellent BTW. The group of chemicals known as phthalates are added to a huge range of

This exact thing is discussed in detail in the book OP referenced, it's excellent BTW. The group of chemicals known as phthalates are added to a huge range of plastics we use at home every day and there is a ton of evidence suggesting that these chemicals are endocrine disruptors. They seem to all have very similar effects WRT endocrine disruption, often substituted for one another when one is found to be bad. This leads to the whack-a-mole effect described by a sibling comment. Products can be listed as "BPA free" but still have these endocrine disrupting chemicals in them.