Many common diseases, like autism, arise from a confluence of genetic and environmental factors, and the US Centers for Disease Control and Prevention's Genomics and Health Impact Blog likens it to cooking a vegetable stew. "Genes are represented by the many different ingredients and the environment by the time length and temperature of the cooking and whether the pot or pan used is constructed of cast iron, earthenware, or steel," writes the CDC's Scott Bowen. "Every skilled chef knows that any change in the preparation of stew, soup or similar entree can result in a completely different taste." He adds that biological processes act in a comparable manner. "Genes respond to a continually varying environment over time to produce various health outcomes," Bowen says.
The Stew of Common Diseases
Aug 16, 2011