55-65 heartbeats per minute.
Athletes pride themselves on it: A lower resting heart rate indicates they’re in better physical shape, so their hearts don’t have to pump as hard. That usually means a lower risk of heart problems.
“At a higher rate, the heart needs more oxygen, stressing the cardiovascular system,” says Kim Fox, MD, of the Royal Brompton Hospital in London. The best way to reduce your rate? Regular exercise.