Sleep Cycle Essay

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NIGHT SHIFT SAFETY Justin Christensen PHY 400 It is very important to understand sleep to then understand the effects of shift work and to understand how to increase safety. There is very little knowledge about why we need a normal sleep cycle that include sleeping at night, but even less is known about the sleep cycles of those who try to sleep during the day and go to work during the long night. All the studies are not clear about what is the correct amount of sleep is actually required for a healthy lifestyle. As you look there the research there are result that show long natural sleepers and short sleepers have increase in mortality stats. What research has told us is that sleep is relegated by an internal time clock or what the experts call the circadian cycle. First circadian comes from two Latin words circa: about and dia: day. All the various bodily function cycle that occur during the day are related to our circadian cycle. Since the time of Aristotle and Hippocrates these cycles have been recognized. Our sleep/wake cycles is one of the best known bodily functions to show circadian rhythms, and even our vital signs are directly linked to this cycle. As technology advances we gain more precise measurements, allowing researchers to recognize more circadian cycles which in turn teach us how our bodies work and function. On an interesting note it has been found that bone length is linked to and show a circadian cycle. In a majority of circadian rhythms there seems to be major components which include an endogenous component (which is regulated by an internal clock located in the hypothalamus) and an exogenous component. This exogenous component is made up of different clues in time in the world around us.... ... middle of paper ... ...ydrates, and lean meats) during their regular meals and breaks to reduce problems with their digestive tracts and also to keep a better level of alertness while working. Employers may want to consider, for example, so install refrigerated snack machines which stock fruit and low-fat cheese and yogurt replacing "standard" snack machines that are stocked with the standard sugary foods. Also avoiding caffeinated drink helps with digestive issues. There are many other was to increase safety and help those that work the night shift but just small step with any way will increase safety at every turn. The key issue to have a routine and eat properly. Bibliography Costa, G. (1997). The Problem:Shiftwork. The Problem:Shiftwork, 89-98. Maynard, W., & Brogmus, G. (2006). Safer shift work through more effective scheduling. Occupational health and safety, 16.

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