This video breaks down the science of sleep cycles, exploring how each 90-minute phase contributes to memory consolidation, emotional processing, and physical healing. Learn about sleep disruptors ...

Daytime “wash cycles” help clear waste from the brain but cause momentary drops in attention after nights of poor sleep.

A groundbreaking study conducted at the University of Pennsylvania's Perelman School of Medicine discovered a critical link between stress and disrupted sleep cycles. The study, published in Current ...

Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

Health experts at Harvard Medical School have explained how to transform your sleep ...

Sleep regularity (waking up and going to bed at the same time every day) could be more important than sleep duration in predicting heart attack and stroke. A new study found that even when individuals ...

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 ...

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 ...

What is core sleep is on your Apple Watch, and does it even matter? We look at which sleep stages matter most for quality ...

Sleep disturbances are pervasive across all phases of bipolar disorder and can be addressed through routine screening.

Noise from aircraft at night is linked with disturbed sleep quality and sleep-wake cycle, a new study using movement trackers has shown. Environmental health experts at the University of Leicester ...