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Bad effects of sleep deprivationb essay
Positives and negatives of sleep deprivation
Bad effects of sleep deprivationb essay
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Sleep Cycle Response
The four stages of sleep are REM (rapid eye movement sleep), NREM1 (non-rem), NREM2, and NREM3. During the REM stage “your heart rate rises, your breathing becomes rapid and irregular, and every half-minute or so your eyes dart around in momentary burst of activity behind closed lids” (Myers, 2014, p. 96).
In stage one (NREM-1) your brain begins to relax producing slower brain waves while you are still awake and as you are not quite sleep yet, you experience what is called “hypnagogic sensations or hallucinations”. During this time, a person may feel like they are falling or hear what sounds like someone calling their name. This is something that I cannot recall, all I know is it is lights out. I tape recorded myself
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once and I remember saying “good night” and after that silence. Every now and then I was stirring around in the bed but no falling or aliens or noises in my head. I was being tested with a CPAP machine and so I tape recorded myself.
The test results were normal and the recorded long periods of silence and every now and then movement, a cough, maybe a little snore but that was all. At any rate, stage 2 (NREM-2) of the sleep cycle produces what is known as sleep spindles or bursts of rapid, rhythmic brain-wave activity which lasts about twenty minutes. As your heart rate begins to slow down and your body temperature drops you transition into a deeper sleep and this is stage 3 (NREM-3) of the sleep cycle. Slower brain waves or delta waves occur and a person becomes less responsive to any activity around them, such as noise. The person becomes like that of a dead person or at least that is what my Uncle Herbert would say. He told me I sleep like I am dead. He said he pinched me and hollered at me and I still would not wake up.
It amazes me that the whole time I was in Vietnam, I got very little sleep especially when I was in the field and it did not seem to be deep sleep. But when I came home I could sleep undisturbed by lightning storms or loud noises. In stage 3 of sleep, a person is in a very deep sleep and in this stage people have been known to sleep walk or wet the bed. I remember those embarrassing days as a
child. “The sleep cycle repeats itself about every 90 minutes. As the night wears on, deep NREM-3 sleep grows shorter and disappears. The REM and NREM-2 sleep periods get longer (see figure 3.13) By morning, we have spent 20 to 25 percent of an average night’s sleep – some 100 minutes – in REM sleep” (Myers, 2014, p. 97). Poor Harry was asked to go back to the mother ship. My grandmother would have told him as she did us, “It must have been something you ate the night before”. But today I know that this is what is known to occur as you begin to fall asleep in stage 1 (NREM-1) of the sleep cycle. So, I would explain to Harry that he was hallucinating and he was experiencing hypnagogic sensations. Of course poor Harry probably would not believe me because these events can seem so very real to a person.
is the transition between light sleep and very deep sleep.Stage four is sometimes referred to as
So for an average sleep time of eight to ten hours, we go through this sleep cycle four to five times a night. In stage one of the sleep phases, we are in a light sleep that lasts anywhere from five to ten minutes. In this stage, our eyes are still moving slowly and our muscles are slowing down, but may still have sudden muscle contractions like as if we were being startled or as if we were falling down. People in this phase may not feel rested if they are awakened, and might not of felt like they were even asleep at all. In stage two of the sleep cycle, you have successfully fallen into a light sleep. During this cycle your heart rate has slowed down, and your body temperature has dropped. You no longer have eye movement, and your body is finally resting the parts it has used through out the day. The next stage, which is stage three is also combined with stage four of the sleep cycle. These two cycles together are known as the delta sleep or the deep sleep stage, and is a very important part of the sleep cycle. During these cycles your body repairs and re-grows tissue, strengthens the immune system and builds bone and muscle. In these cycle it may be very hard to wake a person up, and if woken they may feel droggy or “out of it” for several minutes. In these stages is when most people have night terrors, experience sleep walking, or sleep talking occurs. In an adults average time of sleep this takes up about fifteen to twenty five percent of the time of sleep. Lastly, there is the REM cycle, which is also known as paradoxical sleep. During this cycle is when most of your muscles are paralyzed, your eyes are moving rapidly, and your breathing, heart rate and body temperature are not regulated. Vital signs show that during this stage, the arousal and oxygen levels
We live our entire life in two states, sleep and awake1. These two states are characterized by two distinct behaviors. For instance, the brain demonstrates a well-defined activity during non-REM sleep (nREM) that is different when we are awake. In the study of sleep by Huber et. al., the authors stated that sleep is in fact a global state2. It is unclear whether this statement means that sleep is a state of global behavioural inactivity or the state of the global nervous system. The notion that sleep is a global state of the nervous system served as basis for sleep researchers to search for a sleep switch. The discovery of the sleep switch, in return, provided evidence and enhanced the notion that sleep is a global state of the nervous system. The switch hypothesis developed from the fact that sleep can be initiated without fatigue and it is reversible1. It was hypothesized that there is something in the brain that has the ability to control the whole brain and initiate sleep. Studies have found a good candidate that demonstrated this ability3. They found a group of neurons in the Ventrolateral Preoptic (VLPO) nucleus. It was a good candidate because it was active during sleep, has neuronal output that can influence the wakefulness pathway, and lesion in the area followed reduce sleep3. The idea that there is something that can control the whole brain and result sleep state supports the idea that sleep is a global state of the nervous system.
There are many causes, treatments, symptoms and ways to diagnose insomnia. With that in mind there are also different kinds of insomnia. There are three main types of insomnia each type has their own symptoms and behaviors that go along with it.
Could someone commit a crime or murder while sleeping? Could someone drive 14 miles from home without waking up or wrecking? How do you determine if someone was sleepwalking when only the victim and offender would know that answer and one of them is dead? How do some people get away with the sleepwalking murder defense while others don’t? Many questions come to mind when sleepwalking and murder come into play. While asleep people have been known to talk, walk, do simple tasks, eat, fight with your spouse and even have sex, but when it comes to the murder defense it a whole other story.
the sleeper will gradually descend deeper into sleep, becoming more and more detached from the outside world and progressively more difficult to awaken. Stage three is the beginning of deep sleep, occurring about thirty to forty five minutes after you first fall asleep. The deepest sleep occurs in Stage four. Stage three and four has the biggest and slowest brain wave. REM sleep, a mentally active period during which dreaming occurs, provided a biological explanation for this phenomenon. Scientists found that brain activity during REM sleep begins in the pons, a structure in the brainstem, and neighboring midbrain regions. The pons sends signals to the thalamus and to the cerebral cortex, which is responsible for most thought processes. There are several myths about sleep. For one, how much sleep a person should get? According to our text book people should sleep for at least eight hours to maintain sound mental and physical health. But every one doesn’t get the chance to sleep for that amount of time. There is no normal amount of time you should sleep. Everyone is not the same. For one I might sleep for five hours and feel refreshed enough to work another shift. Other hand my cousin might need more then eight hours of sleep to feel refreshed.
In stage one, a sleeper experiences light sleep and can easily be awaken. When a sleeper progresses to stage two, eye movement stops and brain waves become slower (National Sleep Foundation, 2015). Stages three and four are both regarded as the deepest and most restorative sleep, with no eye movement or muscle activity occurring during this stage (Stages of sleep, 2014). During these stages, blood supply to muscle increases and tissue growth and repair occurs. On average, REM sleep occurs every 90-120 minutes, approximately 4 to five times a night if adequate amount of sleep is obtained. Each REM sleep period grows progressively longer than the previous cycle, with the last episode near rise time (Hershner, Chervin, 2014). REM sleep is essential because it provides energy to the brain and the body, thus supporting daytime performance. In order for sleepers to receive the full benefit that sleeping provides, they must go through each sleep stage for an extended period of time (Stages of sleep,
Sleep disorders are an underestimated public health concern considering that fifty to seventy million Americans are affected. Technological advances in the field of sleep have facilitated various theories to explain the need for and the purpose of sleep. Scientist have uncovered many types of sleep disorders such as insomnia, sleep apnea, and narcolepsy. Sleep disorders affect men ,women, children, the elderly, and the obese in different ways. Factors such as the number of children and the effects of menopause have been studied to determine their effects on sleep. Various treatments have been utilized ranging from non-pharmacologic to pharmacologic methods. Scientist have pinpointed areas of the brain that are involved in sleep deprivation and hormones that ultimately affect sleep.
There are five stages of sleep. The first stage is when one prepares to drift off. During this stage, one experiences Alpha and Theta waves. This stage generally lasts five to ten minutes. The second stage lasts about twenty minutes. The brain begins to produce short periods of rhythmic brain waves known as Sleep Spindles. Body temperature begins to drop and the heart rates slows down. During stage three, slow waves
Sleep is a very important factor in the human function. Our body and brain is able to reset itself and rejuvenate while we sleep. When we do not get the required amount of sleep, we start to feel lethargic and foggy minded, because our mind and body wasn’t able to replenish itself. Sleep is imperative that an insignificant rest deficiency or lack of sleep can affect our ability to remember things; decisions and can affect our temperament. Chronic sleep deficiency can get the body to feel agitated and it could lead to serious health problems such as, heart problems, stress, acne, and obesity.
Sleeping takes up about a third of your life, but not getting enough sleep can be risk taking. Lack of sleep reduces our alertness, impairs our judgment, and affects our moods. Down below will tell you all the things about sleep, like how it affects your mood, your healthy body, and even the people around you. I bet you didn’t think too much sleep could be bad for you, but it can but also lack of sleep can be bad for you to.
Preliminary Thesis Statement: Sleep deprivation has detrimental effects on the health and academic performance of students.
Sleeping is a simple yet complex process that individuals go through every day. During sleep, a person will go through a total of five stages of sleep. These stages are known as stage 1, stage 2, stage 3, stage 4, and stage 5/REM sleep. http://psychcentral.com provides a good explanation as to what happens during these stages of sleep. During stage one a person is in light sleep mode, meaning that their body temperature and heart rate pretty much stay the same as if they were awake. Their brain also produces brain waves known as theta waves during this s...
Maynard, W., & Brogmus, G. (2006). Safer shift work through more effective scheduling. Occupational health and safety, 16.
We depend on sleep each and everyday in order to be able to interact throughout the day. Sleep is very important if you want to socialize with people or feel real good. It is very important in order to live a healthy life. It really gives you energy so you won’t crash. Sleep is a very important part of physical and mental health through the day.