For many people, is a Central switch in the bed for the time being. Who does not want to abandon before the night’s rest on your Smartphone and Tablet, enabled often a blue filter. For a warmer light, which are gentle on the eyes, and for a better falling Asleep to ensure. British researchers have now found out that, apparently, exactly the opposite is the case. According to their research, warm light interferes, namely, the inner clock is stronger than blue light. (More about healthy sleep, read here)

This was the conclusion of scientists from the University of Manchester, when they examined the effects of cool and warm light on the sleep patterns of mice. "Blue colors had a weaker effect on the internal clock of the mouse as the same bright yellow Farben", informed the University. Surprised, the Declaration is but.

Warm light from the screen interferes with sleep

The research team refers to the light conditions in nature. The sun produces a warm spectrum of colors, while the light of dusk or the moon goes down the nights cool. The warm light on the phone suggests to the body so that it is actually time for Sleep. Corresponding to the blue filter could to bring the internal clock so messed up, conclude the scientists.

"We refute the widely held view that blue light has the strongest effect on the (internal) clock hat", study leader Tim Brown said. "In truth, with the twilight associated blue colors have a weaker effect than white light or yellow light of the same intensity." The night mode is, according to the researchers, although useful, as it reduces the brightness of the screen. This positive effect would be due to the "falsche" Color wiped out, the scientists write in the journal "Current Biology". (Also read: study: people with this profession have the most Sex)

Blue light and the internal clock

But why light blue of all as a so harmful to sleep? This theory was at their advent a sense, Brown said, compared with "The Guardian". In 1998, it was first detected in the light-sensitive molecule Melanopsin in the retina. It is sensitive to short-wavelength, blue light. It was concluded that blue light affects particularly the internal clock.

According to Brown Melanopsin is primarily for the perception of brightness, while the colors are detected by the cone cells in the eye. And here are the effects of cold and warm light are exactly the opposite. Who does not want to abandon in bed on phone or Tablet, should, according to the researchers, to insulated, cool light.

This article was written by (GQ.de)

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