Scientific dictum used to declare that our genes were responsible for most diseases. Then a couple of decades ago, the scientific community casually mentioned that they had been in error, and announced that the environment, by activating or deactivating particular genes, is the most causative factor in producing disease. We now know that less than 5 percent of all diseases today stem from single-gene disorders (such as Tay-Sachs and Huntington’s chorea), whereas around 95 percent of all illnesses are related to lifestyle choices, chronic stress, and toxic factors in the environment.4

