What's the link between Alzheimers and DDT?

DDT exposure

DDT (dichlorodiphenyltrichloroethane) is a chemical produced to kill insects. It was banned in the United States in 1972. However, many developing countries are still using DDT. If you live in the United States you can still get exposed to DDT by consuming foods and other products from these developing countries that use it. There was a study done showing that DDT has a relationship to Alzheimer’s disease.