Lack of Sleep Essay

1016 Words 5 Pages
Talking with different people one notices that a lot of them consider they can accomplish more if they could waste less time sleeping. However, they don’t realize they are only hurting their productivity when they lose sleep. I’ve read two articles that deal with the issue of sleep deprivation. The College Student Journal published an article about the grade-point average of college students and sleep length, while U.S. News & World Report produced an article dealing with the lack of sleep in America and its effects on performance.
The articles show different results from different types of data with different degrees of definiteness. In spite of their differences, both articles showed that lack of sleep is a cause for decreased
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At first the volunteers spent nearly eleven hours sleeping to catch up on their accumulated sleep debt, an average of seventeen hours per person. By the end the volunteers were averaging what appeared to be an ideal level of eight hours and fifteen minutes of sleep.
Another study, conducted by Eva Van Cauter, a sleep researcher at the University of Chicago, published a report in which healthy young people spent three weeks in a sleep lab. The first week they were in bed eight hours, the second week four hours, and the third week twelve hours. During the sleep-deprived second week the patients showed signs of a pre-diabetic state caused by the impaired tolerance of glucose. In addition, the pancreas was less able to produce enough insulin because the central nervous system became more active. Also, sleep-deprived young people can develop hormonal changes that make them look much older than they actually are. Older people have lower levels of cortisol as do sleep-deprived young people. Cortisol normally drops to a low level in the evening to help the body prepare for sleeping. The levels gradually rise overnight while peaking just before morning. The rise in the hormone energizes the body for the following day. However, low evels of cortisol may be due to a lack of sleep time (Brink 62-72).
Another area of comparison is the method in which each article obtained its data. The article on college age students

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