Risk factors

The following risk factors increase your risk of coronary artery disease and angina:

• Tobacco use. Chewing tobacco, smoking and long-term exposure to secondhand smoke damage the interior walls of arteries — including arteries to your heart — allowing deposits of cholesterol to collect and block blood flow.
• Diabetes. Diabetes increases the risk of coronary artery disease, which leads to angina and heart attacks by speeding up atherosclerosis and increasing your cholesterol levels.
• High blood pressure. Over time, high blood pressure damages arteries by accelerating hardening of the arteries.
• High blood cholesterol or triglyceride levels. Cholesterol is a major part of the deposits that can narrow arteries throughout your body, including those that supply your heart. A high level of low-density lipoprotein (LDL) cholesterol, also known as "bad" cholesterol, increases your risk of angina and heart attacks. A high level of triglycerides, a type of blood fat related to your diet, also is unhealthy.
• Family history of heart disease. If a family member has coronary artery disease or has had a heart attack, you're at a greater risk of developing angina.
• Older age. Men older than 45 and women older than 55 have a greater risk than do younger adults.
• Lack of exercise. An inactive lifestyle contributes to high cholesterol, high blood pressure, type 2 diabetes and obesity. However, it is important to talk with your doctor before starting an exercise program.
• Obesity. Obesity is linked with high blood cholesterol levels, high blood pressure and diabetes, all which increase your risk of angina and heart disease. If you're overweight, your heart has to work harder to supply blood to the body.
• Stress. Stress can increase your risk of angina and heart attacks. Too much stress, as well as anger, also can raise your blood pressure. Surges of hormones produced during stress can narrow your arteries and worsen angina.