Taking longer to get to deep sleep or REM sleep can disrupt memory consolidation and emotional processing, affecting overall ...

Some mornings, waking up might feel like interrupting a vivid alternate universe. You open your eyes to reality, but the ...

Sleep can be divided into 2 phases — non-rapid eye movement (NREM) and rapid eye movement (REM) — and 4 stages that make a complete cycle. You’ll typically complete 4 to 6 cycles per night.

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

However, some research suggests that poor sleep could raise your risk of Alzheimer’s. A study published in November found ...

Taking longer to enter the dream phase can disrupt the ability to consolidate memories and interfere with emotion regulation.

Essentially, sleep is divided into two stages – non-rapid eye movement (non-REM, which the researchers refer to as NREM) sleep and REM sleep – and it's widely understood both play distinct ...

Scientists have found that both the quality and amount of sleep we get can affect our risk of developing Alzheimer’s disease.

There is a dose-dependent relationship between alcohol and sleep, especially for REM sleep onset latency and REM sleep duration.