Medically reviewed by Sanja Jelic, MD As we sleep, our brain moves through four stages and two phases: non-rapid eye movement ...

Deep sleep is the restorative stage of sleep. During this stage the body undergoes tissue repair, the immune system is ...

Your sleep cycle includes light, slow-wave, deep, and REM sleep, which repeat throughout the night. To get restful sleep, you need to spend the right amount of time in each stage of the sleep cycle.

A key indicator of sleep quality is the way our sleep cycles look. A sleep cycle is made up of four main stages: REM, and NREM1, 2 and 3. How long you spend in each ... to be important for ...

Sleep architecture refers to the sleep phases that the brain cycles through each night. These are the four phases of sleep: Stage 1 ... and is especially important for cell and tissue repair ...

We need different amounts of each, and cycling through all of the sleep stages, including light sleep (also known as NREM 1 and NREM 2) is important ... “You cycle through different sleep ...

Sleep architecture refers to the sleep phases that the brain cycles through each night. These are the four phases of sleep: Stage 1: The first stage once ... crucial biological functions and is ...