Sudden cardiac death is the leading cause of death in adults in the United States. Knowing CPR may help you save someone's life. Learn more about CPR by taking this quiz.

Angina is a warning that the heart muscle is not getting enough oxygen-rich blood. Medication, certain medical procedures, and lifestyle changes can help control angina.

A heart attack is an urgent message from your heart that it’s starved for oxygen. When oxygen-rich blood to your heart is blocked by a clot, heart muscle begins to die and symptoms of a heart attack start.

Normally, your body warns you of a problem by making you feel pain. But over time, high blood sugar damages nerves in your body. This may keep you from feeling pain caused by a heart problem.

Chest pain could be simple indigestion or a heart attack. Knowing the warning signs of a heart attack, and knowing how to respond, could save a life. The following guidelines can help you make the right decisions and take the right steps when seconds count.

Atherosclerosis can start as early as childhood and can lead to many health conditions, including heart disease and stroke.

A heart attack is an emergency, but the condition that causes it usually takes years to develop. Over time, fatty substances collect on the walls of the heart's arteries. As these arteries become narrower, it's more likely that one will become fully clogged, causing a heart attack.

Ignoring your symptoms can end up costing more in the long run because many conditions are more quickly and easily treated if diagnosed in their early stages.

Angina is a condition characterized by recurring pain or discomfort in the chest. Not all chest pain or discomfort is angina, but all chest pain should be checked out by a doctor.

Taking a standard first-aid and CPR class can help prepare you for most medical emergencies. The National Safety Council, the Red Cross and many hospitals offer classes. The following suggestions can help you respond appropriately.

Technology has given us the automated external defibrillator (AED), which is turning up far from hospitals. Some schools and public buildings already have AEDs.

How do you know the difference between ordinary cramps and a real medical problem? Take this quiz and learn some distinctions.

Metabolic syndrome is a cluster of risk factors that greatly raises your risk for heart disease and type 2 diabetes.

Peripheral arteries deliver oxygen-rich blood to the legs and feet. Over time, artery walls may thicken as they build up with plaque (a fatlike substance). As plaque builds up in an artery, blood flow can be reduced or even blocked, causing peripheral artery disease.