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Effects of evening light conditions on salivary melatonin of Japanese junior high school students
BACKGROUND: In a previous study, when adult subjects were exposed to a level of 400 lux light for more than 30 min or a level of 300 lux light for more than 2 hours, salivary melatonin concentration during the night dropped lower than when the subjects were exposed to dim illumination. It was sugges...
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Formato: | Texto |
Lenguaje: | English |
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BioMed Central
2004
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC515180/ https://www.ncbi.nlm.nih.gov/pubmed/15304196 http://dx.doi.org/10.1186/1740-3391-2-4 |