A board-certified sleep medicine specialist reviews the history of wearable sleep trackers and explains how clinicians ...

The team focused on the relationship between norepinephrine and blood flow during deep sleep. They found that norepinephrine waves correlate to variations in brain blood volume — suggesting that ...

Researchers using intracranial electroencephalogram (EEG) recordings from deep within the brain found that meditation led to ...

Danish scientists found that a molecule called norepinephrine plays a key role in the brain's cleaning in mice. During deep sleep, the brainstem releases tiny waves of norepinephrine about once ...

Delta waves (0.5-4 Hz) signify a state of deep sleep. A binaural beat with a frequency between 4 and 7 Hz, for example, is more likely to align with theta brain waves, promoting sleep and relaxation.

A study in mice shows how a molecule called noradrenaline, which causes blood vessels to constrict, powers the brain’s natural cleansing system during deep sleep 1. Natalie Hauglund at the ...

Researchers using intracranial electroencephalogram (EEG) recordings from deep within the brain found that meditation led to changes in activity in the amygdala and hippocampus, key brain regions ...