Biological Clock Depends On Color Of The Light, Not Brightness, Or the Time
Why you want to sleep when it is dark and get up automatically when the sun comes back to life in the morning? Now there is a scientific reasoning behind our going to bed in night and getting up in the morning.
Scientists have found that the color of light tends to influence humansâ€™ and animalsâ€™ internal clock. They have also claimed that this internal clockâ€™s data actually assists the brain to know the time of the day.
Besides, scientists have also worked to understand the neurological mechanism for how our internal clock can measure changes in the light color that includes dawn and dusk.
Researchers associated with the University of Manchester are behind this path-breaking finding. Scientists who worked on the study suggest that there are changes in the light intensity during the sunrise and sunset and also during twilight as the light is bluer than during the day
According to them, they subjected the mice to different visual stimuli and recorded that electrical activity from the brain clock and they found that the neurons are more sensitive to changes in the color between blue and yellow than to the changes in brightness. They also measured the changes in the color and brightness at the top of the Universityâ€™s Pariser Building for more than a month; this data was used to create a simulation for an artificial sky
Scientists, to their amazement, realized that same as it is expected for nocturnal animals, when mice was placed under the artificial sky for several days, the highest body temperatures was recorded just after the dusk, when the sky turned blue, indicating that their body clock was working optimally.
It is needless to say that the researchers are supremely excited about the finding. said Dr Timothy Brown from the Faculty of Life Sciences, who led the study says â€œThis is the first time that weâ€™ve been able to test the theory that color affects our body clock in any mammal. It has always been very hard to separate the change in color to the change in brightness but using new experimental tools and a psychophysics approach we were successfulâ€¦Whatâ€™s exciting about our research is that the same findings can be applied to humans. So, in theory, color could be used to manipulate our clock, which could be useful for shift workers or travelers wanting to minimize jet lag.â€
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