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Lack of Sleep

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Submitted By j026
Words 592
Pages 3
Lack of sleep has harmful physical and mental effects to the human body. As is commonly known, the human body needs at least eight hours of rest each night. These eight hours are used by the body to recover the health of cells in bones, muscles and organs. However, most people in actuality do not sleep enough time. As a result of this, we can observe different pathological conditions on people who don’t have more than two hours of rest daily. Some of the effects that lack of sleep produce in the human body are muscular injuries, depression and behavior changes. The muscles make us what we are. One of the functions of the muscular system is to give us shape and form. At the same time, the muscular system is in charge of supporting the weight of the different systems that compound our body, like nervous, skeletal, digestive, reproductive, etc… Moreover, the most important function is to produce movement. Different fibers form a single muscle. They contract and stretch hundreds of times to give movement to the whole body. This constant stretching starts damaging the fibers. Not enough sleep to recover the muscular cells in the fibers result in injuries and muscular pain all over the body.
After two days without enough sleep the body start feeling fatigued. Blurry vision, high blood pressure, abnormal high body temperature and muscular pain give a bad mood to the body and a hurry to sleep. On the other hand, on a day full of responsibilities there is not time to stop. These stressful situations overload the brain, which is busy dealing with the constant deterioration of the body. The brain starts to decrease their functions. Consequently, a normal human being falls in a constant depression that increases each passing hour without rest.
Finally, the change in the behavior is easily linked to muscular fatigue and also with the mental depression. An example of how our body reacts to injuries is after a surgery some people fall in what is called post-operative depression, in which the damage done to the body is so enormous that the brain decreases productivity and the person starts having suicidal thoughts. Equally in the lack of sleep the damage in the different tissues is so large that the brain starts confusing situations and misunderstanding the information that is received by senses. Irritability is the most common effect of lack of sleep.
To conclude, we need to remember that sleep is an important part of our lives. Not enough rest may cause a great variety of dysfunctions in our body; mentally dysfunctions like irritability, stress or even psychosis, and physical dysfunctions like muscular pain, headaches, high blood pressure or fatigue. Sleep restores and releases our body of mental and physical problems that can affect our daily life style.

Works Cited
Echarri, Luis. “Ciencias de la Tierra y del Medio Ambiente” Tecnun. 1998. Web. 01 Feb 2013. < http://www.tecnun.es/asignaturas/Ecologia/Hipertexto/00General/Principal.html>
“Greenhouse effect.” Wikipedia, the Free Encyclopedia. Wikimedia Foundation, Inc. 8 Dec 2012. Web. 01 Feb 2013.
“Greenhouse gas.” Wikipedia The Free Encyclopedia. Wikimedia Foundation, Inc. 01 Feb 2013. Web. 01 Feb 2013.
Muller, Elizabeth. “250 YEARS OF GLOBAL WARMING” Berkeley Earth, 29 Jul 2012. Web. 01 Feb 2013.
Than, Ken. “Scientists: Natural Disasters Becoming More Common.” Live Science, 17 October 2005. Web. 01 Feb 2013. < http://www.livescience.com/414-scientists-natural-disasters-common.html>
Usuario124246. “Consecuencias del Calentamiento Global.” Educasitios2008, 27 Oct 2008. Web. 01 Feb 2013. < http://educasitios2008.educ.ar/aula124/>

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