For decades, atomic clocks have provided the most stable means of timekeeping. They measure time by oscillating in step with ...

Jet lag leaves most travelers groggy, disoriented and wide awake at the wrong times. Yet some people glide through time zone changes as if their internal clock had built-in GPS. This ability to adapt ...

Deep-brain imaging in awake mice reveals how light resets the circadian clock by activating complex SCN neuron networks. The circadian clock is a powerful internal system that controls nearly every ...

TONIGHT. THE ANNUAL TRANSITION TO DAYLIGHT SAVING. MANY PARENTS WERE REMINDED THIS MORNING. IT’S A LOT EASIER FOR CLOCKS TO LOSE AN HOUR THAN IT IS FOR KIDS. HERE TO EXPLAIN IS DOCTOR ERIKA LEE, A ...

WHEN THIS FULLY REOPENS. AS FOLKS GET READY FOR THE CLOCKS TO SPRING FORWARD THIS WEEKEND, GAINING AN EVENING OF HOUR OF SUNLIGHT ALSO MEANS LOSING AN HOUR OF SLEEP. OUR ERIN BURNETT HAS SOME TIPS TO ...

Daylight saving time ends soon, and Americans are about to gain an extra hour as clocks roll back. The shift sounds like a win, but it regularly leaves people dragging through the day, delays morning ...

FILE - Daffodils are blooming in front of clocks at a park in Duesseldorf, Germany, Thursday, March 24, 2011. People are reminded to change their clocks on Sunday to daylight saving time by moving one ...