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Human Physiology Assignment: Sleep Quality
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Added on 2020-05-28
Human Physiology Assignment: Sleep Quality
Added on 2020-05-28
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Running head: INTRODUCTION TO RESEARCHSleep Quality StudyName of the Student:Name of the University:Author Note:
INTRODUCTION TO RESEARCH1Table of contentsIntroduction......................................................................................................................................2Literature review..............................................................................................................................21. impact of light on sleep...........................................................................................................21.1 Generalization........................................................................................................................31.2 Specific discussion from literature........................................................................................32. Shift work and jet lag...............................................................................................................42.1 Generalization........................................................................................................................42.2 Specificity..............................................................................................................................43. Anxiety, pain and other medical conditions............................................................................53.1 Generalization........................................................................................................................53.2 Specificity..............................................................................................................................64. Effect on sleep due to chemical substances.............................................................................64.1 Generalization........................................................................................................................64.2 Specificity..............................................................................................................................7Comprehensive critique...................................................................................................................7Conclusion.....................................................................................................................................10Reference.......................................................................................................................................11
INTRODUCTION TO RESEARCH2IntroductionSleep quality can be described as a person satisfaction from the sleep experience whichincludes initiation of sleep, sleep maintenance, quantity of sleep and refreshment after waking upfrom sleep. Sleep quality is an important for the researchers and the clinicians due to the highincidence of insomnia and sleep disorders and also the clear relation of proper functioning ofhealth (1). This study is divided in to two parts: the first part is based on literature review of thesleep quality study; the second part focusses on the comparative analysis of two research articlesamong and the comparative analysis includes biases, validity, reliability, limitations, andcomment on sample size, application or implication of research, and culture, religion and gender.Literature review Sourcekeyword usedNo. of literature returnedno. of collected literatureElsevierimpact of light on sleep258shift work and jet lag306anxiety and pain357effect on sleep due to chemical substances445Researchgateimpact of light on sleep303shift work and jet lag452anxiety and pain304effect on sleep due to chemical substances5541. impact of light on sleep Light is one of the major disruptor of sleep. It affects the sleep of a person throughdelaying the sleep which makes it hard for an individual to sleep. The invention of light bulb inthe late 19th century has made humans to receive more exposure to light during the nigh time incomparison to invention of light bulb before.
INTRODUCTION TO RESEARCH31.1 GeneralizationLight affects the sleep quality of our body and makes it difficult for us to fall asleep bothdirectly and indirectly. Light acts to disrupt the internal clock of the body which affects ourpreferred time to sleep. Light affects the internal clock present in our body through the variouslight sensitive cells. 1.2 Specific discussion from literatureUsage of the light emitting electronic devices that aid us to communicate, read,communicate, entertain has increased to a great extent. The usage of this devices before thebedtime greatly prolongs the time taken to fall asleep. This affects the circadian clock of thebody and inhibits the release of the hormone, melatonin. This reduction in the amount of thehormone affects the timing of sleep to a large extent (2, 3, 4, 5, 6). Portable devices like mobilephones, computer monitors, reading devices have affected the melatonin secretion due to theblue light emission from the emission from such devices. Light in the range of short wavelength(446-483 nm) affects adversely the melatonin secretion in humans. Whereas the blue light notonly affects the melatonin secretion but also the cognitive performance and melatonin secretionthrough the non-image performing photoreceptors (7,8,9, 10). The circadian timing systemwithin the human body is deeply synchronized with the several biochemical and physiologicalprocesses, which also includes the regular rhythm of sleep order. Thus, the main inference is thatthe timing of the sleep and the duration is directly linked with the circadian clock. It has beenfound that the exposure to light at the evening and the early part of night, suppresses the releaseof the hormone melatonin even at low intensities. Due to this exposure, the circadian clock shiftsto a later time which results in difficulty to fall asleep at night (11,12).
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