The Apple Watch Ultra 3 is a powerful health and fitness watch; that much was evident from its predecessor, the Apple Watch Ultra 2 (otherwise known as the best Apple Watch, in terms of features and ...

Understanding your heart rate can be helpful to calibrate your perceived exertion, especially on easy and steady runs. This ...

You might love the motivating tempo for workouts or the cadent call for calm that a smartwatch heart rate monitor provides. But when it’s time for an upgrade, what ...

I am a marathon runner, and I routinely mention this not (just) to prove that those memes about runners always talking about running are absolutely correct: We do. I do it because I've gotten there by ...

The issue: Many runners (particularly women) report that their fitness trackers tell them they’re exercising in a higher zone ...

Whether due to stress or an intense cardio workout, most of us have felt our heart racing from time to time. A rise in your heart rate can be perfectly normal given outside circumstances. However, ...