Sleep is key to brain and body function, memory, physical performance, preventing chronic disease and improving mental health ...

Sleeping fewer than 4.5 hours and more than 6.5 hours per night is associated with cognitive decline, according to researchers. In a recent study published in Oxford Academic's Brain, a team from the ...

Essentially, sleep is divided into two stages – non-rapid eye movement (non-REM, which the researchers refer to as NREM) sleep and REM sleep – and it's widely understood both play distinct roles in ...

Any sleep tracker will show you that slumber is far from a passive affair. And no stage of sleep demonstrates that better than rapid eye movement, or REM, commonly called dream sleep. “It’s also ...

Introduction: The cardiovascular system (CVS) is heavily influenced by the autonomic nervous system. Additionally, there is a functional alteration during the various stages of sleep. In nonrapid eye ...

New research analyzing data from dozens of sleep studies has identified a dramatic change to the nature and purpose of sleep in babies, occurring around the age of two. The discovery suggests sleep ...

Often undiagnosed, sleep apnea can quietly affect brain health, impacting memory, focus, and mood. A closer look at the signs ...