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Today: How does sunlight affect humans?

April 20th, 2015

Episode 290 of 1744 episodes

The colour of light has a major impact on how our body clock measures the time of day, according to research by scientists at The University of Manchester. It's the first time the impact of colour has been tested and demonstrates that colour provides a more reliable way of telling the time than measuring brightness. Dr Timothy Brown is the study’s lead researcher.

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