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Nt1310 Final Exam

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Nt1310 Final Exam
1. What is sleep, what are its phases and what purpose does it serve?
There are five stages of sleep;
Stage #1: Light sleep
Stage #2: Eye movement stops
Stage #3: Brain waves interspersed with slow and fast movement
Stage #4: brain produces Delta waves stage three and four are called deep sleep cycle. It is important to go through adequate sleep and get the sleep cycle run its course correctly. Our body repairs itself during sleep. Our body has an ingenious way of restoring our body as we sleep; during the day, there is a buildup of different chemicals including adenosine. All of these chemicals are what is thought to make us want to sleep. Scientists have discovered an immunity system in the brain that is called the lymphatic system. The glymphatic system is the main system that clears the waste product that build up in your brain.
2. What is a circadian rhythm?
A circadian rhythm is a “biological clock” that controls when we must sleep, and when we must wake up. This 24-hour clock has been observed in plants animals, fungi, and cyanobacteria. When someone
…show more content…
What are some symptoms of sleep deprivation?
• Yawning
• Memory Problems
• Hallucinations
• Weight Gain
• Mood-swings
• Depression
• Inability to focus
• Tired/ Exhaustion
• Not being alert
I have experienced some of these symptoms because of sleep deprivation; I have experienced yawning (most people have), inability of focus, tiredness, and not being alert. All of these that I have just mentioned are the most common, when sleep deprivation occurs.

5. Why do we dream?
No one really knows why we dream, but scientists speculate that dreams happen in the REM (random eye movement). The only thing we have right now are theories that might or might not be right. One theory is that everything that the eye saw throughout that day is sorted out throughout the dream. Another theory is that we dream to keep our brains working, as a screensaver sort of thing. One more theory is that we dream to solve

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