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Science: evidence is intelligence - If Blood Is Red, Why Are Veins Blue? 'Blood is always red, actually. Veins look blue because light has to penetrate the skin to illuminate them, blue
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Is Deoxygenated Human Blood Blue?
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Albert Vein Institute - AVI - YOUR BODY IS AMAZING! EVER WONDER WHY ARE YOUR VEINS BLUE? Your veins are blue because they are showing the color of deoxygenated blood. When your
