Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The Apple Watch has a ...

Restorative sleep happens during deep sleep and rapid eye movement (REM) sleep. Deep sleep repairs tissue and strengthens immunity, while REM supports learning and memory. Nonrestorative sleep means ...

Source: Amy/Pixabay It goes without saying (recognizing I’m about to say it…) that sleep is important. Sleep is a basic requirement for life and is the cornerstone of physical and mental health, ...

New research suggests sleep may depend as much on gut microbes as on the brain. The findings reveal bacterial molecules that could hold the secret to how and why we sleep. Credit: Shutterstock ...

Officially, perimenopause marks the transition into menopause. Unofficially? It ushers in a chapter that is physically and emotionally challenging for many women. During these years, hormones begin to ...

Biphasic sleep involves sleeping twice within 24 hours, like a long sleep at night and a nap during the day. Napping can help improve mood, cognitive abilities, and physical performance, and reduce ...

L-theanine supplements may improve sleep quality and reduce the time it takes to fall asleep. Doses studied by researchers range from 200 milligrams (mg) per day to 900 mg per day, although the FDA ...

Sleep state misperception is a condition where you underestimate how much you’ve slept the night before. You may feel like you were awake all night, but you actually slept for hours. It’s also called ...

Taylor Leamey wrote about all things wellness for CNET, specializing in mental health, sleep and nutrition coverage. She has invested hundreds of hours into studying and researching sleep and holds a ...

It’s 11:30 a.m. and you’re sitting at your desk, thinking about lunch. Will you grab a burger with co-workers or eat the salad you packed this morning? The next thing you know, your eyes open and you ...

Sleep Science says the '60-minute bedtime rule' is crucial for longevity — here's why and how to use it starting tonight Sleep I slept for 8 hours a night and still felt exhausted — until an expert ...

This piece is part of Scientific American’s column The Science of Parenting. For more, go here. If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By ...