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Study on impact of different light levels on human Circadian Rhythm

Colaco, Anitha M and Kurian, Ciji Pearl and Kini, Savitha G and Colaco, Sheryl G (2016) Study on impact of different light levels on human Circadian Rhythm. In: 8th National Conference on Advances in Energy Conversion Technologies, 28/01/2016, Manipal Institute of Technology, Manipal.

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Abstract

This paper makes an attempt to study the impact of different light level on human circadian rhythm. The pattern of light/dark cycle due to revolution of earth brings about the biological changes in humans. This biological changes in humans can be observed as changes in circadian rhythm. The hormone production, core body temperature, sleep/awake cycle exhibit the circadian rhythm. Sleep/awake cycle is governed by production of hormone. The progression of Melatonin is such that it is maximum during the night period and minimal during the day. The study considers two conditions first one normal lighting with bright light illuminance of 500 lux during day and minimum of 10 lux during night. Second condition inc lude bright light illuminance of 1000 lux at night and minimum light of 10 lux during the day. The plots obtained for the two lighting conditions is given in the paper. The analysis reveals that bright light at night suppresses the melatonin and leads to more activation of neuron cells maintaining alertness at night. A low light level of 10 lux at night triggers Melatonin during the night and brings sleep.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Circadian Rhythm, illuminance, sleep/awake, cycle,correlated colour temperature
Subjects: Engineering > MIT Manipal > Electrical and Electronics
Depositing User: MIT Library
Date Deposited: 16 Apr 2016 11:04
Last Modified: 23 Apr 2016 11:52
URI: http://eprints.manipal.edu/id/eprint/145872

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