Calculate your target heart rate zone and work to stay in the middle of that zone while you’re doing your cardio. Here’s how you do it: According to the American Heart Association, a person’s target ...

As you age, many aspects of your body shift, including your heart’s response to physical activity. One of the most important changes is how your heart rate behaves during exercise. Your maximum and ...

To build a healthy heart, in fact, to achieve overall fitness, experts and doctors often recommend working out every day. But what is the right amount of exercise to ensure that your heart stays ...