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 ...

The switch from daylight saving to standard time offers a reprieve for those who need more sleep. Clocks fell back an hour on Sunday morning and many people may have enjoyed an extra hour of slumber.

Everyone knows the feeling: tossing and turning during a hot, sticky night when sleep feels impossible. It's hard for anyone to sleep well when it's hot out. And the disruptions are growing, ...