Fast heart rate or irregular heart rhythm and shortness of breath during physical activities
Exercise increases heart rate, but the rate usually returns
to normal within minutes after the exercise stops. Anyone who has a fast heart
rate or irregular rhythm with shortness of breath for an extended period of
time after physical activity may have a heart problem. Anyone who has
palpitations, an irregular heart rhythm,
lightheadedness, or fainting when he or she is
physically active needs to be evaluated before activities are continued.
If you have
heart disease or
heart failure, or if you have had a
heart attack, be sure you understand the seriousness
of a change in your heart rate or rhythm.
Atherosclerosis -- sometimes called hardening of the arteries -- can slowly narrow and harden the arteries throughout the body. When atherosclerosis affects the arteries of the heart, it’s called coronary artery disease.
Coronary artery disease is the No. 1 killer of Americans. Most of these deaths are from heart attacks, caused by sudden blood clots in the heart’s arteries.
Atherosclerosis can create life-threatening blockages, without you ever feeling a thing. Since we’re all at risk for coronary...