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 ...

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 ...

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 Get the Popular Science daily ...

This Sleep Awareness Month, consider this your sign to stop glorifying exhaustion and start protecting your rest.

On World Sleep Day 2026, experts explain how much sleep adults really need, why sleep quality matters for health, and tips to ...

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 ...

It may seem innocent, but it's probably getting in the way of good rest.

Plus, which has more possible side effects.

Forbes contributors publish independent expert analyses and insights. I'm a science journalist specializing in healthy aging and longevity. As we age, we often experience changes in our sleeping ...

Scientific studies reveal that women sleep slightly longer than men, yet often feel less rested due to hormonal shifts, mental health factors, and caregiving demands. This guide explores biological, ...

The “wired-tired” cycle happens when the brain stays alert despite physical exhaustion. Stress, high cortisol, screen ...