04:48
Heart of the Matter: Lowering Your Risk of Heart Disease
There are certain unavoidable risk factors for heart disease, like family history. But there are factors that you can modify to lower your risk of a heart attack: high cholesterol, high blood pressure, cigarette smoking, and physical inactivity. Any...
02:06
Breaking Addictions
Dean Hamer, Director of the Gene Structure and Regulation Unit at the National Cancer Institute, talks about efforts to determine, "...whether or not there is a genetic basis for why some people find it easy to stop smoking, and other people find it...