10 myths about heart disease

Teri Arnold of the American Heart Association asks: "How much do you know about your heart's health? It's easy to be fooled by misconceptions. After all, heart disease only happens to your elderly neighbor or to your fried food-loving uncle, right? Or do you know the real truth - that heart disease affects people of all ages, even those who eat right?"

Relying on false assumptions can be dangerous to your heart. Cardiovascular disease kills more Americans each year than any other disease. So let's set the record straight on common myths.

  1. "I'm too young to worry about heart disease." How you live now affects your risk for cardiovascular diseases later in life. As early as childhood and adolescence, plaque can start accumulating in the arteries and later lead to clogged arteries.
  2. "I'd know if I had high blood pressure because there would be warning signs." High blood pressure is called the "silent killer" because you don't usually know you have it. You may never experience symptoms, so don't wait for your body to alert you that there's a problem. Check you numbers with a simple blood pressure test.
  4. "Diabetes won't threaten my heart as long as I take my medication." Treating diabetes can help reduce your risk for or delay the development of cardiovascular diseases. But even when blood sugar levels are under control, you're still at increased risk for heart disease and stroke. That's because the risk factors that contribute to diabetes onset also make you more likely to develop cardiovascular disease.
  6. "I don't need to have my cholesterol checked until I'm middle-aged." You should start getting your cholesterol checked at age 20, even earlier if your family has a history of heart disease. Children in these families can have high cholesterol levels, putting them at increased risk for developing heart disease as adults.
  7. "Heart failure means the heart stops beating." The heart suddenly stops beating during cardiac arrest, not heart failure. With heart failure, the heart keeps working, but it doesn't pump blood as well as it should. It can cause shortness of breath, swelling in the feet and ankles or persistent coughing and wheezing. During cardiac arrest, a person loses consciousness and stops normal breathing.
  8. "This pain in my legs must be a sign of aging. I'm sure it has nothing to do with my heart." Leg pain felt in the muscles could be a sign of peripheral artery disease, which results from blocked arteries in the legs caused by plaque build-up. The risk for heart attack or stroke increases five-fold for people with PAD.
  9. "My heart is beating really fast. I must be having a heart attack." Your heart rate speeds up during exercise or when you get excited, and slows down when you're sleeping. Most of the time, a change in your heartbeat is nothing to worry about. But sometimes, it can be a sign of arrhythmia, an abnormal or irregular heartbeat. Most arrhythmias are harmless, but some can last long enough to impact how well the heart works and require treatment.
  10. "I should avoid exercise after having a heart attack." No! As soon as possible, get the help you need by joining a cardiac rehabilitation program or consulting your healthcare provider for advice on developing a physical activity plan for you.

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