Mysteries About the Human Body That You’ve Probably Never Thought About

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People with tetrachromacy have the rare ability to see extra colors. All of us have photoreceptors in our eyes that help us see light and colors.The average person can only see colors through 3 photoreceptors, namely blue, green, and red. But people with this condition can see through 4. Women are more likely to have this condition, and around 12% of them have this extra one.

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