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Non-visual effects of light: how to use light to promote circadian entrainment and elicit alertness
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Jul 25 2017
Source: Light Res Technol. 50(1):38-62
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Alternative Title:Light Res Technol
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Description:In addition to stimulating the visual system, light incident on the retina stimulates other biological functions, also referred to as non-visual responses. Among the most notable biological functions are human circadian rhythms, which are bodily rhythms that, in constant darkness, oscillate with a period close to, but typically slightly longer than 24 hours. Twenty-four-hour light-dark patterns incident on the retina are the major synchronizer of circadian rhythms to the local time on Earth. Entrainment of circadian rhythms has been implicated in health and well-being. Light can also elicit an acute alerting effect on people, similar to a "cup of coffee." This review summarizes the literature on how light affects entrainment and alertness and how it can be used to achieve these aims.
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Pubmed ID:30416392
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Pubmed Central ID:PMC6221201
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