Have you ever wondered why doctors wear blue or green scrubs in the operating room, even though most doctors are always pictured in white coats... so why not white overalls? Well, it turns out that there's actually a pretty important reason for that difference in color.
Back in the day, all medical staff wore white clothing until 1914, when an influential doctor decided to give up the traditional uniform in favor of green or blue uniforms. The problem with the white uniforms was that the immaculately white color had a tendency to temporarily blind surgeons after they shifted their gaze from their bloody patients to their colleagues' white uniforms. This is similar to that momentary blindness you get when you go outside in the winter and see sunlight reflecting off the snow.
Ok, so we know why their scrubs aren't white, but why are they green or blue, instead of something like yellow or purple? That's because blue and green are the opposite of red on the spectrum of visual light.
During operations, surgeons are focused intently on red colors, so wearing colors on the opposing end of the spectrum helps improve their visual acuity, as well as making them more sensitive to different shades of red. This helps them pay greater attention to the nuances of human anatomy, significantly lowering the chances of a mistake during an operation.
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H/T: Bright Side