A good night’s sleep doesn’t just help you feel refreshed – it might actually clear your brain. A new study, led by researchers from the University of Copenhagen and the University of Oxford, reveals ...

and REM sleep by avoiding the need for head fixation and allowing mice to move freely in their home cage during recordings.” Their findings highlighted the critical role of norepinephrine ...

Every minute or so during non-rapid eye movement (NREM) sleep, the brain releases a wave of norepinephrine, a hormone that is one of the brain’s primary neurotransmitters. Norepinephrine is a ...

The team observed that slow synchronized waves of norepinephrine, cerebral blood volume, and CSF flow characterized non-REM sleep. The norepinephrine triggered “micro-arousals,” causing ...

The study found that during deep, non-REM sleep, norepinephrine is released in small, regular pulses about once every 50 seconds. These pulses act like a rhythm that causes blood vessels in the brain ...

Share on Pinterest Scientists have discovered a link between REM sleep and risk for Alzheimer’s disease. Vera Vita/Getty Images Alzheimer’s disease and Alzheimer’s disease-related dementias ...

A new study in mice suggests that sleeping pills may impede the brain's ability to "cleanse" itself during sleep.

Image credit: robert reader/Getty Images. As many as 70 million ... This is because of a neuromodulator called norepinephrine, which during non-REM sleep is released in slow cycles roughly every ...