The good news is your genes are not in the driver's seat when it comes to most medical conditions. You are. According to WebMD, "…for most people, a healthy lifestyle trumps inherited risk."
Heart disease and diabetes are two of the most common worries for people as they age. Although more than 100 genes may slightly increase the risk of heart disease, the biggest factors in reducing risks are maintaining a healthy weight and diet, exercising, and not smoking. Type 2 diabetes is also partly about genes, but mostly about losing weight and exercising. While reducing risks from these diseases by living healthy, blood pressure and cholesterol levels decrease. People over 65 who have been diagnosed with coronary artery disease can reduce their heart attack risk by 45 percent when maintaining a healthy lifestyle.