In contrast with Rapid Eye Movement sleep (REM sleep cycle), the main characteristics of slow-wave sleep are absent or slow eye movement, moderate muscle tone, and lack of genital activity. This state is a depolarizing phase, whereas the former state is a hyperpolarizing phase. The next section of the wave is indicated by an upstate an excitation period whereby the neurons fire briefly at a rapid rate. It’s during this period that the neocortical neurons are able to rest. The initial section of the wave is indicated by a down state an inhibition period whereby the neurons in the neocortex are silent. Because the EEG activity is synchronized, this period of sleep is known as slow-wave sleep: it produces slow waves with a relatively high amplitude and a frequency of less than 1 Hz. What is Deep Sleep?ĭeep sleep is the sleep stage that is associated with the slowest brain waves during sleep.

We’ve all heard of deep sleep (also known as slow-wave sleep) and how our bodies need it to function properly, but what exactly is it? There is an abundant amount of research on deep sleep, but we have all of the essential information you need to know on what it is, its function, and how you can get more of it.

How to increase sleep time in windows 7