If you’ve ever been confused about your own max heart rate, this will make you feel validated. For example, I’m 44, and the “220 minus your age” formula would have me believe my max is 176. But my ...

Your THR is between 50% and 70% of your maximum heart rate.” The charity has actually created a free tool for calculating ...

In this era of fitness trackers, we have easy access to our heart rate at any given moment. Every so often, a number catches your eye as it flashes on your Garmin or Apple Watch while you're sitting ...