Your watch’s VO2 max isn’t perfect, but you can improve its accuracy with better data and heart-rate tracking.

With the rise in popularity of the Oura Ring, I've seen lots of ZDNET readers express interest in finding a more affordable alternative. I don't blame them; while the Oura Ring is a leading smart ring ...

Windows 11 has a built-in report that provides insight into your laptop's battery status, including whether it's time for a replacement.

On the flip side, a low HRV — less variation between beats — can indicate your body is stuck in “fight-or-flight” mode. That ...

Glaucoma is a leading cause of blindness among people who are unable to monitor and manage their intraocular pressure (IOP) ...