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The effect of blue light on sleep
Siebeltová, Kateřina ; Kinkorová, Ivana (advisor) ; Bunc, Václav (referee)
Title: The effect of blue light on sleep Objectives: The aim of the diploma thesis was to determine the effect of blue light on sleep quality. Methods: This is an experiment. 10 probands, whose ages ranged from 18 to 24, took part in the experiment. The participants were represented in the number of 2 men and 8 women. The research was conducted in 3 phases. In the 1st phase, the subjects' monthly sleep was monitored with a watch (Garmin brand). In phase 2, the probands put on red blue light blocking glasses (Tron brand) 1.5 hours before sleep. After 3 months of wearing the glasses, the 3rd phase occurred, in which the monthly sleep was again monitored with a watch (Garmin brand). At the same time, respondents completed the Pittsburgh Sleep Quality Index (PSQI) in the 1st and 5th months. The questionnaire provides scores on seven subscales, including sleep latency, sleep duration, usual sleep efficiency, sleep disturbances, sleep quality, sleep medication use, and daytime dysfunction due to sleepiness. Results: The aim of the work was to determine the effect of blue light on sleep quality. The results show that the goal was confirmed. We set out a research question that was about whether sleep quality differs without and with the use of red blue light blocking glasses. Since there was a change in...
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