Flexi Says: Epigenetics is the study of how the working of genes is affected by a person's behavior and environment. The epigenome is a set of chemical modifications in the DNA and the proteins that are associated with the DNA. The epigenome regulates the activity of the genome and is heritable, meaning that the changes can sometimes be permanent and passed down to offspring. The epigenome can also be affected by environmental factors such as air pollutants, electromagnetic radiation, and lifestyle factors such as diet, physical activity, smoking, alcohol, stress, etc.
