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Study says the color of light influences the internal body clock of animals, humans

A study has revealed that color light regulates the internal body clock of humans and animals. The research has also thrown light on how the internal clock, allows the brain to determine the time of the day.color-light-body-internal-clock

Scientists believe that the study could help in preventing depression and jet lag. The study has helped in the understanding neurological mechanism, for changes in light color, including dawn and dusk. Mice were used to study the light intensity changes during sunrise sunset and twilight. The path-breaking finding was done by a team of researchers at the University of Manchester.

“What’s exciting about our research is that the same findings can be applied to humans,” said the researchers.

According to the study, mice were subjected to different visual stimuli and their brain clock activity was recorded. The neurons were more sensitive to colors like blue and yellow, when compared to change in brightness. The changes in neurons were also recorded in the University’s Pariser building for about two months and the data were simulated for an artificial sky.

Scientists were baffled when they discovered that the same pattern applied to nocturnal animals. The higher body temperature of mice was recorded, when the sky turned blue, during dusk. The body clock was working normally. For the first time, researchers were able to separate the change in color to the change in brightness, using experimental tools and psychophysics approach.

Dr Timothy Brown stated that this was the first time they have been able to test a theory, on how color affects a mammal. The theory is set to be applied for manipulating internal clock in humans, which might be useful for shift workers and minimizing jet lag. The study was published in PLOS biology journal on Friday.

The study has been posted in the journal PLOS Biology.

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