Your heart rate is another way to say the number of times your heart beats per minute. This varies between people, but knowing your heart rate, and how it tends to change during rest and exercise, helps you monitor your own health. A lower heart rate when you're at rest usually indicates a healthier heart.
Your Resting Heart
When you're at rest, and you're calm, relaxed and well, your heart rate should be between 60 and 100 beats per minute, according to the American Heart Association. Basically, your heart lowers its rate to pump the necessary amount of blood, and no more. People who exercise a lot may have a resting heart rate of around 40, although it is worth noting that inactive people who take beta blockers may also have a similarly low heart rate.
Pump It Up, Slow It Down
When you exercise regularly, your heart is strengthened. When you are at rest, the strengthened heart doesn't need to do as much work. This means it can pump oxygenated blood efficiently around your body at a lower rate. The health benefit of a lower resting heart rate is that you are at less risk of heart disease.