Is your smartwatch's heart-rate data accurate? We lab-tested 58 devices, from Apple and Garmin to smart rings, against ...

How many step-ups after 55? A CPT shares the 40-rep benchmark, safe form cues, and 4 drills to level up.

Plus, the surprising benefits of turning the intensity down a notch.

The Ozlo Sleepbuds take the crown as the best overall sleep headphones thanks to their comfortability and functionality. In ...