The more risk factors you have, the greater your chance for developing CAD. Some risk factors you cannot control. These are your age, gender and a family history of heart disease. Other risk factors you can change. These are smoking, diabetes, being overweight or obese, high cholesterol and physical inactivity. The information you gave us indicates that you have the following risk factors.

Age

As you get older, your risk for CAD increases. In men, risk increases after age 45. In women, risk increases after age 55.

The information you gave us means that you currently do not have any significant risk factors for coronary artery disease. However, men do have a slightly higher risk of heart attack than women. The following information may help you avoid coronary artery disease in the future.

The information you gave us means that you currently do not have any significant risk factors for coronary artery disease. The following information may help you avoid coronary artery disease in the future.

Family History of Heart Disease

According to the American Heart Association, if one or both of your parents have heart disease, you are more likely to develop it yourself. In addition to your family history, your ethnicity can also mean you have inherited an increased risk. For example, African Americans have more severe high blood pressure than Caucasians and a higher risk for heart disease. Heart disease risk is also higher among Mexican Americans, American Indians, native Hawaiians and some Asian Americans. This is partly because these groups are more likely to have obesity and type 2 diabetes.

High Total Blood Cholesterol

Your high cholesterol makes it more likely that you will develop CAD. The higher your cholesterol level, the greater your risk for CAD. People who have total cholesterol levels greater than 200 mg/dL have an increased risk factor for CAD. Talk to your health care provider about how to lower your cholesterol level. Sometimes you can lower your cholesterol just by changing your lifestyle. Sometimes you may also need to take medication.

High Blood Pressure

It's important to control your high blood pressure. High blood pressure is dangerous because it makes the heart work too hard, the National Heart, Lung, and Blood Institute says. This extra work can cause hardening of the arteries. A blood pressure level of 140/90 mmHg or higher is considered high. If your blood pressure is between 120/80 mmHg and 139/89 mmHg, you have prehypertension. This means that you don't have high blood pressure now but are likely to develop it later. Both numbers in a blood pressure test are important, but for people who are 50 or older, the first number (systolic pressure) gives the most accurate diagnosis of high blood pressure. Talk to your health care provider about how to lower your blood pressure. Sometimes you can lower your blood pressure simply by changing your lifestyle.

Diabetes

Your diabetes makes it much more likely that you will develop CAD. Even people who carefully control their blood sugar are at greater risk. The risk is even greater for people who don't control their blood sugar. About three-fourths of people with diabetes die of some form of heart or blood vessel disease. If you have diabetes, work with your health care provider to keep it under control. Try to control any other risk factors you have.

Smoking

Because you smoke, your risk for developing CAD is two to four times greater than for a person who doesn't smoke. Smoking causes CAD because the toxins in cigarette smoke lead to hardening of the arteries. Talk to your health care provider about how to quit smoking.

Overweight

Your body mass index (BMI) is . Your BMI gives you an estimate of your body fat. A BMI of 25 to 29.9 puts you in the overweight category; a BMI of 30 or higher puts you in the obese category. Your extra pounds -- especially if most of them are around your waist -- make it more likely that you will develop CAD. Excess weight makes your heart work harder and raises your blood pressure. It also raises your total cholesterol and triglyceride levels, and lowers your HDL ("good") cholesterol levels. Extra weight can make diabetes more likely to develop. Many obese and overweight people may have difficulty losing weight. But by losing even as few as 10 pounds, you can lower your heart disease risk. Talk to your health care provider about how to lose weight.

Physical Inactivity

Your lack of regular exercise puts you at risk for developing CAD. Regular, moderate exercise helps control cholesterol levels and blood pressure. It also helps prevent type 2 diabetes and obesity. The more vigorous your exercise, the greater the benefits, according to the American Heart Association. Be sure to check with your health care provider before starting an exercise program. Your provider can also help you decide which exercise is best for you.