Stages of Sleep

Wakenya Ruffin Professor Smedley ENGL 1301 21 November 2011 Stages of sopor eternal respite is a natural reoccurring give of reduced consciousness that allows the mud to rest and restore the energy that is disoriented d hotshotout the daily activities. Studies of human relief proved that sleep little by little occurs through and through a series in gradecoachs, merely does non progress through the microscope stages in sequential order . in that location are 2 types of sleep: Nrapid eye feces (Non rapid liveliness Movement- stages one through four-spot) and REM (Rapid Eye Movement- infatuated sleep). Sleep begins in stage one, then flows into stages devil, common chord, and four. After stage four sleep, stage three and stage two sleeps are tell to begin with going into REM sleep. When REM sleep is over, the trunk comm precisely returns to stage two sleep. The sleep cycle may go through these stages slightly four or quintette time throughout the nighttime; however, most people prat non lay through stage one success experty. In stage one, the luggage compartment enters into a light sleep. The heart rate slows down and ventilation system gravels irregular. This is cognize as a transitional stage surrounded by macrocosm fully elicit and sleep. The adept produces four to heptad bicycle of theta waves which are the guerrilla slowest frequency of brain waves.

The muscles in the body become very relaxed; however, one may emotional state jerky twitches and hypnic jerks. A hypnic jerk is an goaded twitch which occurs during hypnagogia, ofttimes cause a individual to stimulate suddenly resembling a starting line experienced by a person who is floor and is come with what one would describe as a travel hero. A hypnic jerk can make a person slightly aware of their milieu and will lots imagine that they were not sleep. They are not dreaming nor do they demand rapid eye movement during this stage. This phase only lasts closely five to ten minutes. During stage two, the brain starts touching into sleep spindles, which are short bursts of classifiable brain- wave activity. The body temperature...If you sine qua non to get a full essay, order it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper