Going 24 hours without sleep sends your body into crisis mode. Hormones misfire, memory glitches, reaction time slows, and ...

Add Yahoo as a preferred source to see more of our stories on Google. Cole Kan/CNET If you're a light sleeper who's sensitive to sound, then you know how difficult it can be to catch some Zs.

Millions of Americans will gain an extra hour of sleep early Sunday morning as daylight saving time comes to an end. As much as the idea of getting an extended sleep sounds like a blessing, experts ...