On the first day of class I learned in this course that "Psychology" is a scientific study of behavior and mental processes, and is divided into different fields that specialize in different studies. This course was my first psychology course in all my school years, so everything I learned was kind of new to me. After taking this course, my perception of some things that happen, why they happen, and how I handle problems in the real world has changed. One of the most interesting things I learned in this course was the process of sleep and how we dream. While we sleep, many things go through our minds. The phenomenon of sleep can be processed differently from person to person and each individual person has their own way of managing the way they fall asleep. For example, I sometimes have problems falling asleep, so I have to listen to music to stimulate sleep. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay One of the things I learned in this course that interested me is the state of sleep and why we need to sleep. As I have learned in this course, why we sleep is not known, however there is evidence that physical and mental recovery is restored while we sleep. For some people, sleep is a big problem because they suffer from sleep disorders. Sleep disorder also known as somnipathy is a medical disturbance of the sleep rhythms of a person or animal. Some sleep disorders are very serious. There are some sleep disorders known as insomnia, apnea, narcolepsy, nightmares, night terrors, and statistics. I will only refer to some of the disorders that interested me the most. Insomnia is a sleep disorder in which people have difficulty falling asleep or stay asleep for long periods during the night, and it could be dangerous if it is chronic insomnia. According to a study conducted by the University of Maryland Medical Center in August 2010, it appears that approximately 9-12% of the American population suffers from chronic insomnia. In more severe cases, patients experience fatigue, drowsiness, difficulty concentrating, and difficulty thinking. Many sufferers feel that they have been deprived of the joy of living. Insomnia can be a symptom of nighttime breathing problems such as sleep apnea, medical conditions such as heart failure, a side effect of medications, or a symptom of severe anxiety or depression. I find studying this disorder interesting because most of the time I don't fall asleep at night or it takes me so long to fall asleep and most of the time I fall asleep I don't stay asleep. Sometimes I stay awake for more than 30 hours without sleeping, although sometimes I stay asleep for that long. Another sleep disorder that interested me are nightmares which are defined by scary dreams that occur in the rapid eye movement phase and those dreams are remembered, in reverse, in night terrors, which are the scary dreams we have during phase 4 of the NREM. Both are disorders that can be experienced by anyone. Lastly I will talk about narcolepsy which is the most dangerous sleep disorder. Narcolepsy is the sleep disorder in which someone falls asleep without warning during the day and unexpectedly loses muscle tone following moments of emotional arousal. This disorder can be very dangerous because people with this disorder might sleep while driving or any other activity which can have a dangerous outcome. Another thing that I leaned on in this course and that I.