Dear Doctors: I'm a 55- year-old man, and I have been active all my life. I know target heart rates are based on age and was surprised that my heart rate while running is often between 150 and 195.

Normal Slow Walking Heart Rate Causes of Faster Heart Rate Measuring Heart Rate How to Lower Heart Rate When to See a Doctor You may know your target heart rate when working out or your ideal heart ...

Your heart rate can tell you a lot about your fitness and cardiovascular health. Your heart beats consistently, day in and day out, but you may not generally pay close attention to it. You might take ...

Thanks to the proliferation of smartwatches and fitness trackers, it’s never been easier to log your heart rate while running: Simply don the device, start your workout, and watch those beats per ...

The more they train, the more runners become familiar with various statistics – mileage, pace and elevation gain being among them. But one figure that should always be on every runner’s radar? Maximum ...