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Epigenetics, DNA, and Changing Genetic Risk

How DNA and the Environment Work to Determine Behavior

Dr. Barry Kosofsky of Weill Cornell Medical College and NewYork-Presbyterian Hospital talks about the new “buzzword” in behavioral health and genomics: epigenetics. The basic idea is that the way our DNA is expressed isn’t fixed; it can change based on a variety of factors, including our environment and experiences. And that means that genetic risks (for addiction, depression, etc.) aren’t fixed, either. With therapy or medication, we can control them.