New research reveals that neurons in the preoptic hypothalamus -- the region of the brain that regulates sleep and body temperature -- are rhythmically activated during non-rapid eye movement sleep ...

What some call the dozing off stage, the first sleep stage marks the transition from wakefulness to sleep. It typically happens over a few minutes, per the National Sleep Foundation, and it initiates ...

As we sleep, our brain moves through four stages and two phases: non-rapid eye movement (NREM) and rapid eye movement (REM). The brain has four stages within the NREM phase. Each stage and phase of ...

Here’s what you’ll learn when you read this story: We have evolved a sleep cycle that goes from non-REM to REM sleep and back again, but until now, the biological function of this oscillation was ...

What triggers the mammalian sleep cycle's shift between non-rapid eye movement (NREM) and rapid eye movement (REM) sleep? A new study in mice suggests increased levels of dopamine in a key region of ...

The average person spends around a third of their life sleeping. Yet as many as 70 million Americans suffer from chronic sleep disorders and wakefulness, studies have found, and tossing and turning at ...

Findings of an abstract presented at CHEST 2021 indicated that antidepressant use was associated with increased REM sleep latency and a complete lack of REM sleep, which may contribute to the poorer ...

RBD is marked by loss of REM sleep atonia, leading to physical dream enactment. Polysomnography is essential to confirm RBD and rule out other disorders. Idiopathic RBD is a strong predictor of ...