I have terrible sleep at least a couple of nights a week. I’ll wake up grumpy, tired, and irritated. It’s an awful way to start my day. But by the time it’s bedtime, even though I know I should hit ...

Add Yahoo as a preferred source to see more of our stories on Google. The health reporter Kim Schewitz used to be a chronic alarm clock snoozer who felt tired all the time. Jet lag helped her work out ...

Medically reviewed by Amelia MacIntyre, DO Older people still need seven or eight hours of sleep a night—similar to younger ...

Truly intelligent people use the start of each day to boost their productivity. Let’s face it, it’s hard to get out of bed in the morning. Leaving the warm blankets to perform tasks that can be ...

How do we go from sound asleep to awake in the blink of an eye? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When you wake up in the morning, ...