Does the heart rate change with age?

Does the heart rate change with age?

Heart rate decreases as the baby grows up. This probably has something to do with the size.
The heart of a tiny hummingbird beats about 1500 times per minute. See how fast the wings of a humming bird beats!
This is in sharp contrast to the heart of an elephant, which beats at just 30 to 40 times a minute. You can also compare the speed with which an elephant usually walks!
Average adult human heart beats at around 72 per minute while a newborn infant’s heart beats at about 140 per minute.
We know that our heart rate increases with exercise and stress. The maximum predicted heart rate of a person is 220 – age of the person.