N1 and N2 are the first of three phases of non-rapid eye movement sleep. N1 is a type of light sleep that typically lasts less than ten minutes, right after a person falls asleep.

Struggling to solve a problem? Try a short nap, but not just any nap. A new study indicates people who enter the second of ...

Deep sleep could forestall the declines in brain health that can eventually lead to Alzheimer's disease, the most common form ...

Waking up from a nightmare can leave your heart pounding, but the effects may reach far beyond a restless night.

I’m a sleep expert. Here’s how nightmares are taking years off your life - The effects may reach far beyond a restless night ...

Najpierw wprowadzenie podatku akcyzowego na saszetki nikotynowe, potem propozycja przepisów, które zmierzają do wycofania tych produktów z rynku – przedstawiciele środowisk ...

Waking up from a nightmare can leave your heart pounding, but the effects may reach far beyond a restless night.

Prevalence rates of frequent dream recall and nightmares varied by country, with frequent nightmares higher in Germany, Finland, and Norway.

In OSA, oxygen desaturation respiratory events during REM sleep occur more often in Black adults, especially Black women, than in White adults.

A particular sort of dream control helps people mold their minds, practice real-life skills, and even shape their waking ...