At least 68% of people 65 years of age with DM die of some form of HD; 16% die of stroke . Other risk factors, such as high blood pressure, high cholesterol, smoking, obesity, and lack of physical activity can greatly increase a person with diabetes’ chance of developing cardiovascular disease. A few studies have noted a relationship between coronary heart disease risk and stress in a person's life that may affect the risk factors for heart disease and stroke. For example, people under stress may overeat, start smoking or smoke more than they otherwise would. Research has even shown that stress reaction in young adults predicts middle-age blood pressure risk.