Waking up is hard enough. Waking up at the exact same time every day—even on weekends, when you could be luxuriating for another hour (or three) under the covers—can feel borderline unreasonable. Yet ...

Twice a year, we adjust the clock and it often appears to wreak havoc on our sleep schedules and body clocks. Why does changing our clocks by one hour mess up our body clock? “Our body’s rhythms are ...

No, I did not prepare for the start of Daylight Saving Time this past weekend, when most people in the United States move their clocks forward an hour. That means sunset will come later — despite our ...