It depends, of course. But on what exactly? Running coach Matt Fitzgerald explains a simple process of finding your ideal heart rate.

Understanding your heart rate is crucial for more than just reaching optimal fitness–it can also help to reduce injury and ...

HIIT can help improve speed and power, but longer, steadier workouts that you can do regularly, like swimming and rowing, are ...

Thanks to the proliferation of smartwatches and fitness trackers, it’s never been easier to log your heart rate while running ...

Consistently high heart rate may signal dehydration or poor recovery. Resting heart rate indicates fitness; healthy ranges are 60–100 bpm, 40–50 for athletes. Consistently high or very low heart rates ...