Carley Millhone is a writer and editor based in the Midwest who covers health, women's wellness, and travel. Her work has appeared in publications like SELF, Greatist, and PureWow. Polyphasic sleep ...

Staying awake for 24 hours can cause symptoms like anxiety, impaired judgment, and irritability. Long-term sleep deprivation increases your risk of conditions like heart disease and depression. Having ...

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 ...

Most adults still need about 7 to 9 hours of sleep each night as they age, and needing less sleep later in life is a myth. Teenagers ages 13 to 17 need 8 to 10 hours per 24 hours. Sleep may feel ...

Most people sometimes have a night or two when they just can’t fall asleep, but if it becomes a recurring problem and it impacts your daytime routine, there are many sleep aids to consider. Sarah ...

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, ...

This article is a part of CNN Underscored’s Guide to Sleep, a weeklong focus on everything you need to sleep better. We’ll be featuring new products, tips and exclusive deals all week, so check in ...

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 ...

Sleep apnea can cause anxiety and anxiety can make sleep apnea worse. Treatment for sleep apnea usually involves positive airway pressure therapy with a CPAP device. People with sleep apnea and ...

I'm a certified sleep science coach who has tested over 50 mattresses. Sleep trackers can measure all facets of your health, thanks to increasingly sophisticated technology and frequent updates from ...