If human blood is red because of all iron in it, why is it that magnets do nothing at all to us?

Question

If human blood is red because of all iron in it, why is it that magnets do nothing at all to us?

In: Biology

Answer 1

The actual thing that gives blood the red color is a protien called heme, which has a lot of different atoms in it and just one iron atom. Add onto that that there doesn’t need to be a lot of it to change the color of blood. Think like mixing a small amount of dye into a bucket of water. It spreads out.

So magnets do affect it slightly, but there just isn’t a lot of it. An adult might have about 4 paperclips worth of iron in all of their blood.