Myth: Blood Is Blue Inside Your Body
Many still believe that blood is blue when it’s inside our bodies. We all know that blood is red when it’s outside the body but the myth of how it looks inside our body has been pushed a lot. Specifically, this has to do with the fact that people look at their veins and see colors like blue. Why do we not see red? However, this is just a trick of the light. Red light has a long wavelength so it travels through the skin pretty easily and is then absorbed by hemoglobin. Blue light, on the other hand, has a shorter wavelength and is mostly absorbed by the skin. When white light hits the skin, the red light will be absorbed but blue light is what will be reflected back.