Sleep : Rapid Eye Movement

These cycles are based on the approximately twenty-four-hour tau of humans and external factors, called zeitgebers. The sleep cycle affects multiple parts of a person’s day, including school or work, naps, eating, or driving. Research has found that there is an endogenous clock but that animals are also affected by external cues through free-running experiments. An experiment was done concerning circadian rhythms and their connection through metabolism. The researchers looked at multiple factors affecting sleep as a homeostatic process along with a circadian process (Albrecht 27). These factors included neurotransmitters, protein kinases, and metabolism, along with others. The way the body affects our behavior is apparent when looking at the habit that is

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

The circadian rhythm is very important in analyzing ones sleep pattern like when they are a sleep pattern like when they are a sleep and when they are awake. One’s normal circadian clock is based on light-dark times over 24 hours.()

Sleep is a beautiful thing, but people do not get enough of it. It is a time for the body to rejuvenate and process the events of the day. Sleeping is something that we seek out. Getting the recommended amount of sleep allows our body to function properly the next day. Without it, there could be detrimental consequences. The National Institute for Neurological Disorders and Stroke says that without sleep, neurons could be “polluted with byproducts”. In severe cases, people who get very little sleep often experience mood swings, hallucinations and cells do not continue to reproduce.

The human body has a plethora of rhythms that regulate activity such as behavioral processes, physiological functions, moods, and performance. Sleep is a major action that falls into this category of

Sleeping is where the brain rests, however sleep is an active period in which a lot of important processing, restoration, and strengthening occur. The brain needs time to process all the information, the less time the individual sleeps the brain is having a harder time to process information. When people are sleeping the brain goes through and sees what is important to gain or to lose information, even what has happened that particular day. The brain stores the information during sleep. It is important to get as much sleep possible.

Despite the fact that you’re not conscious when asleep, your brain is active during that time. Your brain goes through four cycles of sleep which occurs for approximately 90 minutes each. The first three stages of sleep are call Non-Rapid Eye Movement (N1, N2, and N3).

These stages are characterized by bursts of electrical activity on electroencephalogram (EEG) recordings. EEG readings monitor electrical activity representing neuronal activity in specific neurophysiological regions. Rapid eye movement (REM) sleep is characterized by desynchronized, saw-toothed theta rhythm waves and heightened cognitive activity. Comparatively, high amplitude, synchronous delta waves, and sharp hippocampal waves characterize slow wave sleep (SWS) sleep (stages 3-4 of non-REM sleep) (Tucker et al. 2006).

If this cycle is broken during a night's sleep the body will be unable to function properly. A sleep schedule is the biological rhythms of the body. It generally occurs for appoximately seven hours

Research has found that REM sleep has evolved to become part of the dreaming process otherwise known as REM sleep-dreaming. Sleep with electroencephalographic evidence of the brain shows that a human’s brain is awake during sleep because involuntary eye movement occurs. This occurs during the dreaming consciousness every human possesses which is part of the secondary consciousness every human has. There is also non-REM sleep which is sleep that occurs without the rapid eye movement. The importance of REM sleep and dreaming has been studied for many years and has gradually become more informative. REM sleep is important for a human because it allows for developmental brain growth which furthers the evolution of humans.

For humans, sleep patterns are regulated by human circadian clocks on a 24-hour time schedule. This regulator is located in the suprachiasmatic nucleus in the human brain. Our human circadian clock notifies us that we should be sleepy at night and awake and alert during the day. It is when this clock doesn't function well we must add supplements such as Melatonin (Golombek DA). The human body is naturally programmed to sleep at a certain time and wake up at a certain time. Several people have trouble sleeping at night due to various problems. These problems range "from sleeping illnesses including but not limited to insomnia, stress and sleep deprivation due to studying, partying and caffeine. Human bodies are designed in such a way that we release Melatonin naturally in certain amounts varying upon the time of day. It has been seen that recently more and more individuals are suffering from not being able to sleep properly at night due to their circadian clocks failing to regulate their sleep-wake patterns.

Only 0.5 percent of the whole world suffers from Rapid Eye Movement Sleep Behavior Disorder (“REM Behavior Disorder and Sleep”). Even though only a small percent of people have it, it is a serious condition. Rapid Eye Movement Sleep Behavior Disorder is vividly acting out dreams, and can be a serious and dangerous disorder.

Sleep is undoubtedly one of the most essential requirements for the human body to function properly. It plays a very important role in ensuring the wellness of the human body both physically as well as mentally. In fact, the importance of sleep is clear from the fact that it helps you in maintaining a good lifestyle throughout our entire lifetime. Not only does it help maintain our physical and mental health; rather it also helps in maintaining a decent and healthy lifestyle along with ensuring safety from a number of fatal diseases. It is usually said that the mood in which you wake up is largely dependent on the type of sleep you have been in. This in itself is a big proof of the importance of sleep in our lives. While sleeping, our body finally gets its share of rest and it also gets ample time in rejuvenating from all the wear and tear that it went through during the entire day. Not only this, the body is in its own working condition when we are sleeping as this is the time when it supports the healthy functioning of the brain as well as physical attributes of our body.

Now, this is how sleep affects the body when someone is not awake. In REM sleep, a person's eyes move side to side. Their body twitches and can have a hypnic jerk. (Hypnic jerk is a startled jump during the phase of falling asleep and the person wakes up suddenly.) Lastly, the muscles loosen up and become less taut.

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