Is a Low Heart Rate Dangerous?


Quick Answer

In certain cases, low heart rate, or bradycardia, is dangerous, according to WebMD. It sometimes indicates a glitch in the heart's electrical system. If the bradycardia is severe, the heart does not pump enough blood for the body to carry out its normal functions.

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Full Answer

Though a normal heart rate is typically 60 to 100 beats per minute, it is lower in many healthy adults and athletes, WebMD explains. Low heart rate is also sign of aging, and problems often occur in people over 65 years old. Other causes of bradycardia include coronary artery disease, heart attack, infections of the heart, low thyroid level and electrolyte imbalance. Medications for heart problems and high blood pressure sometimes lower heart rate as well.

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