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Sleep cycle essay
Essay on the sleep cycles
Essay on the sleep cycles
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On a regular basis I don’t typically remember my dreams or even try to remember them. Keeping a sleep journal was a very hard thing for me to do. It was also difficult to know in what specific stage I was in during different times throughout the night. I can’t say for sure the amount of time I spent in each stage either. I can say that I could barely hear my alarm about two hours into the night, so I consider that to be REM because normally I hear my alarm just fine in the morning.
Most of the times when I would awaken during these times I would feel tired, confused and more than a little out of it. It was also hard to open my eyes, and to keep them open. My legs and arms tingled and felt very stiff. That is why I believe during these awakenings I was probably in the REM stage. There were times when a person would walk into my bedroom, and I would automatically open my
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On Sundays I wake up early and go to sleep late. As I mentioned before, the day I am most tired is on Mondays. I don’t take naps during the weekends because I am usually out and about, but sometimes I wish I could.
I don’t feel that I dream very often, but I think that is because I just don’t remember my dreams. A lot of the dreams that I do remember having, often relate to events or things that happened on the previous day or even week. The dream that I had on March 7 probably happened because the day before I had just finished reading a psychological thriller novel. On March 12, my friend and I were joking about winning the lottery. Two days later I had a dream about becoming a millionaire.
Some dreams though like the one on March 9, are weird and random. I didn’t understand it, but I thought the phone ringing was actually me hearing my alarm go off. I thought that was very interesting. Overall I felt my dreams were mostly all based on what I had experienced on the days
Before discussing the role of NREM and REM in learning, it is necessary to clarify the identity of and differences between the two. This type of sleep is marked by different stages based on different the different brainwaves exhibited. REM sleep differs from NREM in that most dreams occur during REM sleep although the two activities are not synonymous. REM is also marked by an incre...
wetting. Stage five is called REM. This is where the most dreaming happened. REM sleep is
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.
Sleep apnea is a sleep disorder which causes frequent pauses in the breathing process during the sleep.
...any disorders related to sleep. Three types of sleep related disorders are Insomnia, Narcolepsy, and sleep-walking. All three can be dangerous, depending on the severity. All three are related to the amount of sleep an individual receives and what happens while they are asleep.
The REM Sleep Behavior Disorder (RBD) is characterized clinically by a history of changes in the nature of the patients' dreams
Sleep is a condition of the mind and body in which the nervous system is relatively inactive, the eyes are closed, the muscles are relaxed and consciousness is practically suspended. On average a person needs between seven and nine hours of sleep, which can be hard to achieve with the stresses of life. Sleep can drastically affect how the mind functions. Studies have found that a lack of sleep can decrease motor skills and affect a persons memory. Among memory and motor skills, lack of sleep can negatively affect cognition. Cognition is the process of thinking which is needed for the writing process and other creative elements. If people increase the amount of sleep they receive, then there writing process will be better. Some studies have
Another reason that causes the negative relationship between sleep deprivation and academic performance is the impact of high-stress level that is caused by sleep deprivation. As mentioned earlier, sleep deprivation could decrease a student’s critical thinking and problem-solving skills. However, it can also make the students feel more stressful. According to the survey conducted in Ball State campus, there are 15 students that often do their homework before they go to bed. 10 students play video games, computer games, and mobile games before they go to sleep. 8 students use their electronic devices to do social activities. 5 students watch movies and television series and 2 students read books before they go to bed. This information proves
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).
The sleep cycle comes in a multi-stage cycle. All in all there are five cycles. The first four of the stages is where there is non-rapid eye movement (NREM). As the fifth stage occurs, that is where rapid eyes moment (REM) happens. Nightmares almost always occur in the second half of a persons sleep and it is always followed with an awakening of the individual even if the person doesn’t remember waking up during the night. Nine times out of ten, when people’s brain can’t handle what is going on during the rapid eye movement stage, they wake up very panically and are also very aware of their surroundings.
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.
Preliminary Thesis Statement: Sleep deprivation has detrimental effects on the health and academic performance of students.
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.