Outline The Nature Of Sleep
The nature of sleep remains complicated, and mostly unexplainable. Sleep is necessary for all mammals. Sleep serves the body as energy conservation processes as well as letting the nervous system recuperate. This bodily recuperation process also allows emotional regulation for the body. The circadian rhythm, also known as the biological clock or circadian clock, regulates the sleep-wake cycle. The circadian clock is located in a group of cells just behind the optic nerve, called the Suprachiasmatic nucleus. Because the Suprachiasmatic nucleus is located behind the optic nerve, it is extremely sensitive and highly responsive to changes of light externally. The first stage is described as the lightest stage of sleep, when the body is slowly