Sleep Cycles: The Five Stages Of Sleep

This investigation examines is it possible for light pulses to alter the motor skills, and cardiac movements of biological life forms. Is it possible to change how biological lifeforms functions if we were to shine a light on them every hour at night? Knowing how most animals work, and from that of human experience I can say that light is what makes us stay awake; therefore if we have a light shined on us every hour would we lose sleep? These are the type of questions I will be answering throughout my extended essay. I will talk about how our sleep is affected by light, and monitor this so I can then record the data. I will also be discussing why we sleep. Which you may be wondering how this ties into light, however light does damage our skin

The neonatal or special care nursery environment is one of variable but constant movement, light and noise. Such an environment is not conducive to the entrainment of good sleep habits. Discuss the impact this environment has on preterm infants in terms of their neuropsychological development and sleep patterns. Consider the longer term implications, and the measures that can be taken to minimise or overcome these.

Sleep can be initiated at any point of the day, as their circadian clock is still in development;

Sleep cycle is the process where a person is asleep and goes through four or five different stages of non- REM (non rapid eye movement) also known to be called quiet sleep and REM (rapid eye movement) known as active sleep. In the beginning of these stages you are not fully asleep you are still alert to things around you because of beta waves these waves are what the brain produce they are small but very fast waves. After these waves produce other waves start producing called alpha waves they relax your body and slow everything down throughout your body. A full sleep cycle is about 90 minutes long most cycles can be about 100 to 120 minutes. All the cycles can be shorter for some people and especially for children when they

The first example the author uses is a young adult name Randy Gardner. For a science project, he has deprived himself of sleep for 11 days in a row. A scientist named William Dement kept track of Randy’s brain function during the course of the experiment. Early on in the experiment, his symptoms included: forgetfulness, nausea and irritability. After sleep deprivation for five days he was experiencing paranoia, symptoms of Alzheimer’s and severe disorientation. During the last few days he was experiencing trembling fingers, slurred speech and a loss of motor function.

The skirmish between traditional aristocracies and new democracies in Sicily was damaging to the Sicilian people, particularly people who were from conservative family backgrounds. The Leopard by Giuseppe Tomasi di Lampedusa portrays the battle of old vs. new through following the life of an old Sicilian aristocrat, Don Fabrizio, commonly known as The Prince. Giuseppe uses The Prince to highlight the outmoded side of Sicily and the struggle to deal with the Risorgimento (Italian unification). Although many people during this time were accepting change, The Prince tried to ignore the change which is portrayed through the motif of sleep.

There are five basic stages in cycles I go thought when I am going sleep though out the night. Stage one, which lasts about five minutes, my brain waives becomes slower and irregular. Then I would go in to stage two, which lasts around ten to twenty minutes, I would have a regular EEG and less then 50 percent of this time is spent in this stage. Stage three is a short transition, which is made up of twenty to fifty percent delta waves. Stage four is around fifteen to twenty minutes, in this stage I have less than fifty percent delta waves and it is where I get the deepest sleep. Then I would cycle back through stages three and two before I enter into stage five. In stage five, which is called REM, which last ten to twenty minutes and I will

There are four theories of why humans sleep these theories are the Inactivity Theory, Energy Conservation Theory, Restorative Theory, and Brain Plasticity Theory. There are multiple mysteries about the human body that scientists have not figured out some of these are appendices, cells, and hair growth but, there is a particular one that is very intriguing out of all these and that is why humans sleep. The Inactivity Theory is one of the oldest theories out of these four theories and the principal behind this theory is that it derives from animals using sleep as a survival technique. This theory used by animals was considered to decrease the chances of conflict and death because during periods of vulnerability such as night being a sleep made less accidents, noise and chances discovered by their predators. This theory could be false though because instead of sleeping and being unconscious the prey could stay awake and remain silent and

Entering the second hour of sleep, brain wave activity increases and the individual enters into the first REM sleep (rapid-eye-movement sleep) period. The cycle of NREM and REM sleep is repeated throughout the night, with each REM cycle becoming longer and each NREM less deep.

The average person need around seven or eight hours of sleep. We go through five stages of sleep, if you include REM. Each stage of sleep lasts a couple of minutes, and continues to route from stage to stage throughout the night. As a person transitions to a deeper stage of sleep the wave pattern is slower and more regulated. Rapid Eye Movement, also known as Rem sleep, is the stage of sleep where most of dreams take place. For many of us sleep is just another part of the day, but there are many diseases that make finding sleep for others very difficult. Insomnia is one of these diseases, and it causes a person trouble finding or staying asleep. Sleep Apnea is possibly one of the most serious sleep disorders, because it causes stop while a

My roommate has been coming into my dorm at all hours of the night and disrupting my sleep. I am going to describe a typical nights sleep cycle and describe how sleep deprivation impacts my ability to learn and my health.

According to (Carpenter & Huffman, 2012, p. 121), there are four stages of sleep; the first four are called non-REM state then the last and final state is called REM )Rapid Eye Movement). When the sleep cycle starts it lasts an average of 1-2 hours; the first sleep cycle has relatively short REM sleep followed by a long period of deep sleep. Later in the sleep cycle REM period lengthen and deep sleep time decreases. Even though cats tend to sleep longer than human its shows that they have slept similar patterns as humans, including sleep phases of REM stage. When human enter REM stage, breathing becomes more rapid, irregular and shallow; the eyes start to move rapidly back and forth. In this stage, the limb muscles become temporarily paralyzed.

It all started with a tour in the swamp. Bethany knew she was lost. She searched for her tour guide, but he was no where to be found in this rugged more. Suddenly an influx of alligators surrounded her. She quickly started to run in the morass bog, until one snapped at her. Thats when Bethany woke up startled. “It was just a dream,” she told herself. “It was just a horrible, bizarre and random dream.” But, what she didn’t know was that this “random dream” was not so random at all. She tried to figure out what it meant by researching. Her emotions must have triggered this dream somehow to make it symbolize something. This is what some people think dreams show. Many people have different theories about dreaming, but none are proven to be true.

We spend about one-third of our life sleeping. As we get older, our bodies don’t need as much sleep, but it is still important that we get it. On average, young adults from the ages of 18-25 should be getting 7-9 hours of sleep a day. However, most of us don’t get that much. If we need less and less sleep as time goes on, then why is it important that we sleep at all? Although there are many scientists who have theories on why we need sleep, the three biggest theories on why are the Energy Conversion Theory, the Memory Consolidation Theory, and the Restore and Replenish Theory. All of these theories try to explain the importance of sleep, the biological function of sleep, and what can happen to the body if we aren’t getting the right amount.

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