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 ...

Researchers from the Yale School of Medicine found that individuals who spend less time in slow-wave and rapid eye movement (REM) sleep had smaller volumes in brain regions linked to Alzheimer's. This ...

Your period is just one part of a four-phase cycle that affects your mood, energy and even your mental clarity all month long ...

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 ...

And, as reported in previous quarterly updates, the earnings cycle has been recovering quite nicely from its decline after the commodity shock of 2022. The chart below shows the earnings cycle in ...

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 ...

However, some people develop unhelpful habits and ways of thinking about sleep that create a vicious cycle, said Krieger, who is also director of the Center for Sleep Medicine at Weill Cornell ...

Understanding why you’re waking up can be the first step toward better sleep. Our sleep cycles naturally flow through different stages throughout the night, with each complete cycle lasting ...

Time to give these so-called sleep hacks a rest? The team behind the sleep tracker Sleep Cycle crunched data from over 1 million global users to determine the social media slumber shortcuts that ...