Plastic

Which only fuels my don't use plastics fire:

Exposure to bisphenol A (BPA) during pregnancy can cause permanent abnormalities in the uterus of offspring and the reprogramming of genes, said new research from the Yale School of Medicine. The study is the first to show that exposure to the chemical, commonly found in the epoxy linings of food cans and in polycarbonate baby bottles, may permanently affect sensitivity to oestrogen, said the team led by Professor Hugh S Taylor.

BPA, like the kind found in plastic drinking bottles