What is it about?
Light has different effects on the circadian systemdepending on its intensity, duration of exposure, spectralproperties (the retinal photopigment melanopsin is sensitive to blue light, i.e. wavelengths of 460–480 nm) and time of exposure:morning light exposure advances (moves earlier) whereas evening light delays (moves later) the circadian system
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Why is it important?
Public health issue
Perspectives
Important to take into account for shift and nightworkers
yvan Touitou
Fondation Ophtalmologique Adolphe de Rothschild
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This page is a summary of: The double face of light effects: circadian adjustment or disruption, Journal of Basic and Clinical Physiology and Pharmacology, January 2017, De Gruyter,
DOI: 10.1515/jbcpp-2017-0093.
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