States Of Sleep Analysis

The stages of sleep can be broken down into two broad categories: non-REM and REM sleep. Non-REM (rapid eye movement) sleep can be further broken down into four more stages - stages 1-4.

Then you will move into stage two which includes sleep spindles and K complexes. Sleep spindles are very short bursts of brain activity, and K complexes are single high voltage strikes of brain activity. Also, in stage two delta brain waves start to slow function of the brain preparing for stage three and four. Stage three and stage four i will talk about as one because they are very similar and do similar things. These stages are referred to slow wave sleep because your brain is in it’s slowest speed of function. In stage three you brain is between 20 and 50 percent delta waves, from 50 to 100 percent delta waves you are considered to be in stage four. While in stage four people may experience sleep walking and other muscular movement without knowing so. Noises as loud as 90 decibels may not be able to wake the person from sleep. During REM sleep which is after NREM sleep the brain is more active and alert. This is where most dreams occur because your brain is active but you are still sleeping. After the short 15 minute period of REM sleep you will start over with stage one of NREM these cycles normally take 90 minutes to complete. Activity during sleep can come at any point but is most common in REM or stage four of

While experiencing good sleep, I will unconsciously pass through five stages: 1, 2, 3, 4 and REM sleep (citation). According to the PL100 text, these stages progress cyclically from 1 through REM then begin again with stage 1, and usually,

While awake, beta waves are active in the brain. The first stage is known as REM. This is where rapid eye movement occurs. As well, dreams typically occur here. As you begin to fall asleep these beta waves become less prevalent and theta waves start to develop. This occurs in the early stages of sleep. Furthermore, this stage is known as N1 which is a light sleep that usually occurs for about five minutes. During this time body temperature drops and shallow, irregular breathing occurs. The next stage is known as N2. An EEG would show sleep spindles at this point. As time goes on the brain will begin to produce delta waves. These waves are long and slow. They occur in the deepest stages of sleep known as N3. This stage is also responsible for growth hormones being released in the pituitary gland. After N3 the body will begin to wake up on its own. The body will return to it's REM stage where body temperature increases and eyes have movement.

NREM stage one is the beginning of the sleep cycle. It is known as the transitional stage between being awake and being asleep. During this stage, your brain produces theta waves, theta waves are extremely slow brain waves. This lasts about 5-10 minutes. NREM stage 2 of sleep lasts about 20 minutes. During this stage, the brain produces sleep spindles which are bursts of rapid and rhythmic brain wave activity. This is when everything starts too slows down. NREM stage 3 is when your brain produces delta waves during this stage which are very slow and deep brain waves. This stage lasts about 35-45 minutes. REM sleep is most dreaming occurs during this stage. This stage has rapid eye movement, increased respiration rate, and increased brain activity.

Stage 1 is a type of sleep where you drift in and out of your sleep. You can be easily awake. The eye moves slow and muscle activity is slow during this stage. During these stages many can experience sudden muscle contractions proceeding by sensation of falling. Stage 2 eye movement stops in your brain wave become slower with only an occasional burst for rapid waves. Stage 3

A normal night's sleep is when a person successfully goes through all five stages of sleeping. The first stage is when you are lightly sleeping and muscle activity starts slowing down a little. You then start slowing your breathing and heart rate down, as well as your body temperature. The 3rd stage is what is called deep sleep. Deep sleep is whenever your brain start to generate delta waves. The next stage is number 4. This stage is whenever your body is in a very deep sleep and your brain is producing delta waves. The last stage of sleep is the 5th. While in this stage a person may start having rapid eye movement. This is also the stage wear dreaming occurs. It is always important to get a good and full night's rest. Not sleeping can cause

This stage is believed to help people enter deeper stages of sleep (4). Stage 3 sleep consists of 20-50 percent delta activity and stage 4 sleep of more than 50 percents delta activity (4). Stages 3 and 4 are characterized as being slow wave sleep in addition to being the deepest levels of sleep. Approximately 90 minutes after being asleep, people enter rapid-eye-movement (REM) sleep (4). REM sleep consists of rapid eye movements, a desynchronized EEG, sensitivity to external stimulation, muscle paralysis and dreaming (4).

NREM (non-rapid eye movement) sleep is the light and deep stages of sleep “initiated by withdrawal of neurotransmitters from the reticular formation and by the inhibition of arousal mechanisms in the cerebral cortex.” The reticular formation found in the brainstem is primarily responsible for generating REM sleep, and NREM sleep is produced by projections from the reticular formation and other areas of the mesencephalon (midbrain). Normal sleep happens in cycles of NREM and REM sleep. When a person falls asleep, he first enters into a light sleep and then progresses into increasingly deeper stages of sleep (NREM cycle) for about 90 mins, followed by the initial stage of REM sleep, the two cycles alternating throughout the night. For people suffering from narcolepsy, sleep begins immediately with REM sleep and portions of REM happens involuntarily throughout the waking hours. As mentioned earlier, REM sleep is when muscles are paralyzed and when dreams take place, explains the associated symptoms of cataplexy, paralysis and hallucinations (McCance & Huether, 2014; "National Sleep Foundation,"

Sleep begins in stage one of the sleep phase known as non-rapid eye movement. NREM sleep

There are 4 basic stages of sleep and then you reach Rapid Eye Movement Sleep or REM. The first stage of sleep is when you’re slightly sleepy or starting to doze off. Basically, you’re lightly asleep but at the same time still alert. When this happens, your brains starts producing alpha and theta waves and the movement of your eyes begin to slow down. The second stage is still relatively considered a light sleep. The only differences is that your brain’s wave frequency suddenly increases and slows down. This stage of sleep is considered the best time to wake up when trying to take “power naps.” When waking up at this stage, you’ll feel refreshed and not groggy upon waking up. In stages three and four, we begin deep sleep. The brain would produce

There are five stages of sleep: 1) light sleep, drowsy sleep, myoclonic jerks or sudden movements of muscle. 2) decreased muscle activity, no awareness of environment. 3 & 4) delta waves are the slowest with the highest amplitude. 5) REM sleep, rapid eye movements, dreaming occurs, fast wave activity. Stages one through four are non-REM and stage five is REM.

There are many sleep stages people go through when resting. The first sleep stage is the theta waves, also known as light sleeping. In this stage theta waves are increasing as the alpha waves fade out to put you into light sleep. If awaken from this stage most people are unaware they were actually beginning to sleep. Secondly you move on into the second stage, which is the sleep spindles. In this stage your temperature drops, heart rate slows, and your breathing becomes flat and irregular. Sleep spindles show up on paper as quick bursts of activity in the brain that last only a few seconds. During this sleep if you are awaken you will notice you were actually asleep. Next you have sleep stage three where the delta waves come in. Delta waves are the largest and slowest waves of them all; when a person hits this stage they are in the deepest stage of sleep. Lastly REM sleep is the final stage of sleeping. During this stage the body with go back through stage three and then through stage two to increase the body’s temperature. The eyes

 There are five stages of sleep, REM and NREM stages 1, 2, 3, & 4.

110). REM sleep, or rapid eye movement sleep is the final stage of sleep reached in a normal sleep cycle. To better understand this cycle of sleep scientists have used an electroencephalogram to measure brain waves during sleep. A normal sleep cycle consists of five distinct stages with paradoxical, or REM stage being the final stage. REM sleep is what is commonly known as deep sleep.