Researchers have discovered that positive emotions enhance perceptual memories during sleep, particularly in the non-REM stage.

I spent months testing the Oura Ring, Whoop, Google Pixel Watch, and Ultrahuman Ring AIR so you don’t have to. Here is what I ...

The frequency and duration of large muscle group leg movements during sleep change over time, and show distinct sleep stage differences.

Scientists have discovered that rhythmic oscillations of a specific neurotransmitter play a vital role in clearing toxic ...

For every 1 gram per kilogram increase in alcohol dose, REM sleep duration was reduced by 40.4 minutes. Alcohol consumption adversely affects rapid eye movement (REM) sleep in a dose-dependent ...

Comparing the power spectra across different stages of sleep (REM, NREM and wakefulness) would offer more detailed insights. This study marked the first specialized comparison of power spectral ...

The AI-based algorithm analyzed movements during REM sleep and used five features of movements to detect REM sleep behavior disorder. The highest accuracy was achieved by combining all five features.

Anybody can develop high frequency hearing loss, but it becomes more common with age. Exposure to loud sounds or high frequency sounds are common causes of ear damage in younger people.

They found that during a phase of sleep when the brain is relatively calm, known as non-REM sleep, the neurotransmitter norepinephrine was released in slow waves. These waves caused what the ...

Importantly, the glymphatic system is only on during the deep part of sleep called non-REM sleep. This is because of a neuromodulator called norepinephrine, which during non-REM sleep is released ...

Sleep, particularly REM sleep, is crucial in restoring this ... Heart rate variability (HRV), particularly the high-frequency component (HF-HRV), was examined to explore physiological correlates ...