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 ...

Ah, sleep. It sounds so simple, doesn’t it? You put your tot to bed, he closes his eyes, soaks up hours of refreshing rest, and wakes with a smile on his face at 7am… But the reality for most of us, ...

Sleep is not a passive state. There is a tendency to think that waking, daily life is our real life and that sleep is a separate, passive state. But, in reality the brain is very active during sleep ...

In my last post, I asked, "Are you getting enough sleep?" Today, in an effort to better understand the role of sleep in our lives, I ask a very basic question: What happens when our heads hit the ...

It may come as no surprise that hormonal upheaval – say, during puberty or menopause – can play havoc with sleep. But our hormones influence sleep all the time, not just during big changes. What’s ...

Here’s a question from an Oklahoma Medical Research Foundation colleague: My wife and I have recently begun tracking our sleep; I use an Oura Ring and she uses a Garmin watch. The devices not only ...

“Stress is a huge component of your menstrual cycle, and it’s massively under-acknowledged just how much stress really impacts the menstrual cycle,” explains Jenny. From cycle length and ovulation to ...

Does your teen always seem exhausted, irritable, or struggling to stay awake in class? You're not alone. We're facing what experts have called a sleep deprivation epidemic among American teens. The ...

Researchers at the University of Lausanne have identified a novel role for the brain's 'locus coeruleus' in sleep and its disruptions. This brain region facilitates the transition between NREM and REM ...

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 Image: DepositPhotos Get the ...

If you use a sleep tracker at night, these are the three metrics you should be paying attention to in the morning.