We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Lauren Dragan Lauren Dragan writes about audio tech and OTC hearing aids. She ...

If you've been struggling to sleep and end up feeling fatigued during the day, the data collected by these sleep trackers can help you find a solution. Caroline Igo Former Editor, Sleep Caroline Igo ...

Following a consistent sleep schedule helps regulate your REM sleep. Avoiding screen time before bed can improve the quality of your sleep. You can cut down on stimulants like alcohol and caffeine ...

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 ...

Sanja Jelic, MD, is board-certified in sleep medicine, critical care medicine, pulmonary disease, and internal medicine. Sleep-related hypoventilation happens when breathing is too shallow or slow ...

A sleep cycle is a physiological process that allows the brain and body to repair tissues, remove toxins, and process memories. It typically lasts 90 to 110 minutes and is repeated 4 to 6 times per ...

Sleep and hormones affect each other through your circadian rhythm, also called the sleep-wake cycle. A lack of sleep can affect several hormones at once. Getting 7 to 9 hours of sleep helps regulate ...

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, ...

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 ...

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 ...

REM sleep is the dream stage of the sleep cycle and is important for emotional and memory processing. Not getting enough REM sleep can affect learning, emotions, and energy levels. Exercise regularly, ...