Cycle Of Sleep Research Paper

Sleep is a state of altered consciousness, characterized by certain patterns of the brains activity and inactivity. An altered state of consciousness is when a person is not completely aware of their surroundings. Some researchers believe that we sleep to clear our minds of useless information. Other people believe that it is a type of primitive hibernation: we sleep to conserve energy.

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

This stage does last longer than the previous one but only by 10 more minutes. In Non-REM 2, you have this weird and fascinating action happing in your noggin know as sleep spindles. These sleep spindles are bursts of rapid, rhythmic brain-wave activity. After this stage comes one of the best parts of sleep and the part that you’ll generally wake up covered in drool in. This happens to be Non-REM 3 which is often categorized as deep sleep. In this particular stage, we are welcomed by slow delta waves that our brain emits. When this stage has had it’s time to shine, which is 30 minutes, it is time to move onto the final

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,

The first stage of sleep is call N1. N1 is the stage between sleep and wakefulness. In this cycle, your brain produces Theta waves. Hypnogogic Hallucinations are also present during this phase. Hypnogogic Hallucinations are strange sensations that occur when you hear or see something that is not there. For example, if you watched the movie Frankenstein before you fall asleep, you might see the monster Frankenstein when falling asleep.

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.

Fifth Stage REM Rapid-Eye-Movement Sleep, while in REM breathing rates, brain activity increases and decreases, and brain waves are faster and smaller. Paradoxical sleep or active sleep refer to REM the reason for this is because brain, body become heightened and muscle movements are restrained but can twitch this is so dreams are not acted out. REM can last for up to fifteen min. From stage one NREM to REM sleep has taken about ninety min. For the rest of the night’s sleep cycle, it bounces between NREM and REM.

The brain starts to generate deep and slow brain waves. These brain waves are known as delta waves. This stage is the transitional period between light sleep and a very deep sleep. During this stage people become less responsive to noises and activity around them.

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).

You must have heard about the connection between a good night’s sleep and a healthy productive day, tons of times. Understandably so, because these two things are related to each other like two sides of the same coin, you cannot have one without the other. So the big picture question is simple, how to achieve the perfect sleep every night, so that you wake up every morning, fresh, fit, and raring to go to do everything that you are supposed to do? The answer, is simple, and it is that you need to follow a few important rules to constantly sleep like a baby every night and have a fantastic morning, resulting in an amazing day. So without further ado, let’s take a look at those tips.

Throughout the night most people do not even notice all the different stages of sleep that they go into without even thinking about it. In an entire night of sleep a person goes through four different stages of sleep. When a person first lies down before their body even reaches the first level of sleep they lay there in a relaxed state slowing all of their natural body activities In the first actual

While "quiet" sleep, a person proceeds through four stages of increasingly deep sleep. Body temperature decreases, muscles relax, and heart rate and breathing slow down. The longest stage of quiet sleep affects physiological changes that help support immune system functioning. The other sleep level, REM (rapid eye movement) sleep, is the stage at people dream. Body temperature, blood pressure, heart rate, and breathing increase to levels estimated during people are attentive. Studies detail that REM sleep enhances learning and memory, and offers to emotional

 Sleep is not uniform activity, but one produced of different brain waves throughout the night.

A typical night’s sleep is much more complicated than just closing your eyes and waking in the morning. As humans, we live our life on a circadian rhythm. This means that changes occur roughly based upon a 24-hour basis. This circadian rhythm plays a major role in when we get tired and decide it’s time to sleep. This rhythm is theorized to have helped us stay safe thousands of years ago. We would fall asleep during the time that their seemed to be threats roaming around in the dark. to Once we finally get to sleep, our brains and bodies are doing much more than laying in complete stillness. There are five distinct stages of sleep that we experience as we sleep. Each is uniquely different and serves a purpose throughout the night. The first stage of sleep is a very light sleep that lasts for 5 to 10 minutes. During this stage of sleep, you may not even realize that you’re sleeping. While in this stage of sleep our brains power down by 50 percent and produce theta waves four to seven times per second. We proceed to stage two after this. During stage two, our brains power down