I have always wondered why I was taught in school for so long and it turns out that apparently lots of other people were taught this too.
The only reason I can think if that we were raight that blood in the body is blue is because our veins look blue. But does anyone know where that myth came from or why kids are still being taught this today?


Your school was beyond garbage. In my school they explained to me how hemoglobin works and why it’s red. (it’s because of Iron atom that captures specific wavelengths)