Everyone knows exercise is good for your health. But how do you know if you're getting the most out of your workout? An easy way to find out is by knowing your target heart rate. A normal resting ...

To get the most out of a cardio workout, you need to get your heart rate into your target heart rate zone. However you keep your heart rate elevated—by running, doing intervals on an elliptical ...

We know burning calories is essential for weight loss, but how can you be sure you're expending enough energy to reach your ...