New VO₂ Testing Insights Suggest Popular Fitness Metrics May Be Leading to Ineffective and Counterproductive Workouts ...

Experts who spoke to GQ broke down the mechanisms behind this type of training and why pretty much any guy stands to benefit ...

VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

In a few short years, the concept of “threshold” has gone from niche sports science jargon to mainstream obsession. You want to follow Peter Attia’s advice and maximize your longevity by exercising in ...

These days, everyone from the average Susan to the hardcore data-loving wellness enthusiast has the technology to track just about anything in the name of self-optimization. A ring wearable tells you ...

A post hoc analysis found that the effect of transcutaneous auricular vagus nerve stimulation (taVNS) on cardiac and inflammatory stress responses was critically dependent on variability in baseline ...

Whoever we are, whatever we’re doing, we have a measurable heart rate. It’s a pretty clear sign of being alive. But what should your heart rate be when exercising? When we exercise, our heart rate ...

Regulating your breathing can help lower your heart rate while running. Staying hydrated helps to keep your heart rate lower during exercise. Avoiding stimulants like caffeine can prevent an increase ...

This article was made possible by the support of Yakult and produced independently by Scientific American’s board of editors. Earlier this year I got an Oura ring to track the state of my health. Soon ...