If your mental health has been declining, your sleep-wake cycle may be to blame, according to a new review of literature. Taylor Leamey wrote about all things wellness for CNET, specializing in mental ...

Ever wondered how your body seems to know it’s time to wake up, even before your alarm rings? That’s not luck, it’s biology. Deep within your brain, an intricate timekeeping system quietly regulates ...

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

How sleeping in 90 minute blocks has helped me get rid of morning grogginess.

Instead of focusing on the time you spend in bed staring at the ceiling, you should prioritize the hours leading up to lights ...

The internet claims waking at the end of a sleep cycle will leave you refreshed, but experts aren’t convinced. By Clarissa Brincat Published Sep 9, 2025 9:00 AM EDT Add Popular Science (opens in a new ...

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 have ...

Most biochemical reactions accelerate as temperature increases, but our daily circadian rhythms, which are underlain by gene regulatory and biochemical networks, remain constant, even as temperatures ...

Ever wonder why some mornings you wake up ready to go, and others you feel like a zombie? The difference often comes down to when you wake up during your sleep cycle, and that’s exactly what a sleep ...

Huffington Post asked a doctor what's really going on with your sleep ...