What is a "normal" heart rate varies from person to person. It speeds up and slows down to accommodate your changing need for oxygen as your activities vary throughout the day. A healthy heart doesn't beat with the regularity of clockwork. Your grandmother may have referred to your heart as "your ticker," but that nickname has proved to be a misnomer. ![]() Your pulse, both at rest and during exercise, can reveal your risk for heart attack and your aerobic capacity.
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