Can light exposure behaviors predict chronotype, sleep quality, mood, memory, and concentration? SciReports sleep mood memory chronotype sleepquality
By Neha MathurAug 3 2023Reviewed by Sophia Coveney In a recent study published in Scientific Reports, researchers aimed to understand the influences of Light Exposure Behavior Assessment categories on chronotype, mood, sleep quality, memory, and concentration.
Through its spectrum properties, wavelength, and illuminance, light influences human physiology and behaviors, a phenomenon referred to as non-image-forming responses of light. To this end, the team asked all the study participants to complete other questionnaires and tests evaluating their memory and concentration, sleep quality, etcetera, for example, the Morningness-Eveningness questionnaire and Pittsburgh Sleep Quality Index .
Related StoriesBlue light filter use directly influenced the peak time for different bodily activities. Its lower and higher usage during the day and night, respectively, especially more usage an hour before going to sleep, led to a circadian phase advancement; thus, the body came into action before the usual time .
The effect of LEBA 3, i.e., increased use of cell phones before night sleep delayed circadian phase, and reduced sleep quality, with DE: retiring, rising, and peak times=−0.25; −0.23; −0.22; morning effect=−0.12, and DE=0.13. Additionally, it harmed memory and concentration, with respective total effects of 0.20 and 0.23, respectively.
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