Whoop, the screenless watchband-like wearable, has just added a VO2max feature to its app. Now, just like Garmin, Apple Watch ...

Rowing machines and treadmills do not challenge your cardiovascular system in the same way, so what is the science behind it?

Elite rowers have some of the lowest resting heart rates of any athletes. (Image credit: Getty Images) Rowing and running elicit different heart rate responses even if these activities are ...

The Amazfit Helio Ring is rated at 10 ATM water resistance, meaning it can handle surface swimming and snorkeling, but not scuba diving. In practical terms, it’s safe for most daily water exposure, ...

You can also take the " talk test " if you're unable to monitor your heart rate. As per this test, while performing zone 2 ...

If you want the most accurate data possible? “VO2 max testing in a lab is the most ideal way to get your heart rate zones because we can actually calculate lactate thresholds 1 and 2,” Singh ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Ever since the first FitBit was ...