In addition to genetic risk factors, the list of autism’s environmental suspects is long and comes from many studies that show higher rates of autism with greater exposure to flame retardants, plasticizers like BPA, and many other chemicals, among them pesticides. The brain of insects is the intended target of pesticides. In bees, homing behavior is disrupted, along with their ability to return to the hive, kind of like “bee autism.” Human and insect nerve cells share the same basic biologic infrastructure. During critical first trimester development a human is no bigger than an insect. A recent study showed that every human tested had detectable levels of the world’s best selling pesticide in their urine at concentrations between five and twenty times the level considered safe for drinking water.