What Could Cause Slow Heart Rate?

These include coronary artery disease, heart attack, and infections such as endocarditis and myocarditis. Conditions that can slow electrical impulses through the heart. Examples include having a low thyroid level (hypothyroidism) or an electrolyte imbalance, such as too much potassium in the blood.

What is an unhealthy low heart rate?

Bradycardia (brad-e-KAHR-dee-uh) is a slower than normal heart rate. The hearts of adults at rest usually beat between 60 and 100 times a minute. If you have bradycardia, your heart beats fewer than 60 times a minute.

How low is too low for a heart rate?

Doctors consider a low heart rate to be 60 beats per minute (bpm) and below. In fact, if you have bradycardia, you'll have a low resting heart rate below 60, even when you're awake and active.