I gave the new ChatGPT Health access to 29 million steps and 6 million heartbeat measurements. It drew questionable ...

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

Your heart rate can provide valuable clues to help you stay well. Here’s what docs want you to know.

I love my Oura ring. Ask any of my friends, and they’ll tell you that it’s become one of my main personality traits over the ...

The widely-accepted optimal cadence number is 180 spm, however research reveals that even some of the best pro runners vary from that number. Ng says that for many runners, a cadence of at least 160 ...

Ionis is up ~25%. Explore why Olezarsen, recent approvals, and upcoming catalysts could drive more upside. Click here to read ...

This large prospective UK study compared five low-cost fingertip pulse oximeters with arterial blood gas measurements and ...

The developing momentum in activity does seem to be chipping away at some of the economy’s – still ample –spare capacity.

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

Famed biohacker Bryan Johnson and his Blueprint team devised this measure of harmful plastic particles in your blood.

Smart rings are the wearable everyone’s switching to, and we’ve tested the lot to find the best smart rings actually worth wearing.

A single overlooked ratio is flashing a rare historical signal. Years of underperformance may have created a powerful setup.