Research links disrupted biological rhythms to dementia risk, but sleep length alone may not be the key factor.

New research suggests that the strength and timing of the body’s internal clock may be closely tied to dementia risk.

From shareable power banks and super-slim TVs to modular headphones and distraction-free smartwatches, these are the 18 gadgets that truly impressed us at CES 2026.

What makes someone a "morning lark" or a "night owl?" Why does jet lag hit us so hard, and why do some people struggle each winter with seasonal affective disorder? Clues to these puzzles may lie in a ...

A CEO who invented a light therapy wearable said he trained himself to wake up without an alarm clock. Circadian rhythm is the body's internal clock. It shifts based on when you see light, eat. and ...

The Denver Broncos have an offensive consistency problem. Specifically, their offense has been consistently offensive for long stretches during games, and this trend finally peaked against the Las ...

Sean Payton wants to get Bo Nix to be less hurried in the pocket. Isaiah J. Downing / Imagn Images There’s one sentence you can count on almost every NFL coach uttering in the minutes after the game, ...

People who live in the tropical areas where Aedes aegypti mosquitoes reside have probably known for centuries, or even millennia–thanks to their itchy bites–that the mosquitoes hunt most often at dawn ...

Yes, it’s that time of year again, when most of the U.S. “gains” an extra hour of sleep as we “fall back” from daylight savings to shorter days, colder nights, and standard time. This Sunday, November ...

TORONTO — Bleary-eyed Blue Jays fans may be looking forward to an extra hour of sleep when they turn the clocks back on Sunday, but an expert says it won't be enough to make up for a World Series ...