Circadian scores are trending. Here's what they measure and why they matter.

Learn what a circadian score is and why it's replacing sleep scores for many wellness fans.

Sleep tracking apps promise better rest through data. But what happens when the pursuit of a perfect score keeps you up at night? For a growing number of people, that Apple Watch, Oura Ring, or ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Did you know you can ...

Apple Watch includes a built-in sleep tracking feature. Just wear your Apple Watch to bed, and it works automatically. No need to install apps or enter a special mode. watchOS 26 takes sleep tracking ...

Fitness trackers are great tools for helping you hit your health goals. They remind you to move throughout the day, keep track of changes in your heart rate, keep you accountable around your step ...

Here’s one cool addition to yesterday’s information about how the Sleep Score feature works on older Apple Watch models: in fact, it even works with third-party accessories, provided they offer a ...

I already considered Fitbit’s sleep tracking platform among the better options out there, mostly because it was consistent and easy to check in the morning. After testing the new public preview (by ...

Persistent sleep disturbance and fatigue continued after lockdown restrictions ended, regardless of COVID-19 status. Read ...