Hormones play a central role in body functions and processes, including growth and development, behavior, metabolism, reproduction, and fetal development. Fetal and maternal hormone levels are required in precise amounts at different points during the pregnancy to dictate the migration of fetal cells and mediate fetal growth. Any alterations in these hormone levels can impact the development of the fetus.
Amniotic fluids of mothers whose children developed autism were found to have elevated levels of testosterone, other sex hormones, and cortisol compared to the amniotic fluids of mothers whose children developed normally.
Male fetuses are particularly susceptible to sex hormones, and overexposure to sex hormones in the womb has been linked to reproductive malformations. It has been found that every one-percent increase in reproductive malformations in a given area is associated with a 283% increase in the rate of autism and a 94% increase in intellectual disability.
Testosterone works synergistically with mercury to enhance its toxicity. This may contribute to poor pregnancy outcomes in mothers who receive certain vaccinations during pregnancy or in those who are exposed to mercury from other sources.