We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...

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

A blood test, combined with an ultrathin material derived from graphite, could significantly advance efforts to detect ...

Pulmonary function tests are a group of noninvasive breathing tests that measure how much air your lungs can hold, how ...

The Oura Ring basically represents the cutting edge of health tracking and biometrics. It looks like a simple piece of ...