People who have disrupted circadian rhythms suffer all kinds of negative effects, including higher rates of obesity, sleep ...

Medically reviewed by Sanja Jelic, MD As we sleep, our brain moves through four stages and two phases: non-rapid eye movement ...

Spending lower proportions of time in two deep sleep stages — including REM sleep — may be linked to volume changes in ...

Is the Oura Ring worth it? Three editors who reviewed the viral fitness tracker for over a year weigh in, plus ...

Your body provides many signs when it needs rest, including dark circles, muscle aches, and skin blemishes. Here’s how to ...

It can vary depending on your sleeping pattern and schedule, but generally, the worst time to nap is during the late ...

We all know that sleep is important. Healthy adults need to get at least seven hours of ... The best time to nap will vary ...

The bed connoisseurs warn that sipping on tea, coffee, or energy drinks laced with caffeine when it's near bedtime can stir up insomnia and wreck sleep cycles. Caffeine affects the brain by ...

There are many different types of sleep disorders, which can lead to additional symptoms and issues like increased depression and anxiety, difficulty focusing and even diabetes or heart disease. Below ...

During global or national emergencies, such as natural disasters or health crises, it can often become difficult to disconnect from the constant news cycle. You may be worried that you’ll miss ...

This translates into a substantial cumulative energy gain of 30% over graphite-based alternatives after 1,000 cycles [1]. Graph 1A presents the absolute variation in battery capacity (in mAh ...