Health | Science

This Is The Reason Why Your Blood Is Red, But Your Veins Are Blue

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Odyssey/University of Northern Colorado

Contrary to popular belief, the blood inside your body isn't blue.

You may have heard the popular urban myth that your blood is blue until it mixes with the Earth's atmosphere when you cut yourself.

While there are some creatures that have blue blood, humans definitely are not one of them.

So if our blood is always red, then why are the veins that carry our blood blue?

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