How often does a heart beat?

The human heart rate varies and is affected by factors like age, physical fitness, and body position. On average, a healthy resting heart rate for an adult is between 60 and 100 beats per minute (bpm). A heart rate below 60 bpm is considered bradycardia, and a heart rate exceeding 100 bpm is considered tachycardia. Athletes and individuals who engage in regular physical activity may have naturally lower resting heart rates.