'Zone Zero' Cardio Isn't What It Sounds Like

Cardio zones aren't real—not in the way your fitness app makes them sound, anyway. Yes, heart rate zones are a way to ...

Is It Normal for Heart Rate to Run High on Race Day? Here’s How to Zero in on the Right Zone

For guidance as you run 13.1, aim to keep your bpms between 70 to 90 percent of your maximum heart rate (MHR), depending on ...
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What should my heart rate be while running?

Consider two athletes, A and B. Athlete A has a maximum heart rate of 205 beats per minute, while Athlete B has a maximum heart rate of 165 beats per minute. Who’s better? The answer is neither (or ...