Tattoos Last Forever Because Your Immune Cells Are Hungry for Dead Skin
You can thank your immune system for many things — such as preventing your body from turning into an alien fungus or permitting you to live outside of a plastic bubble. You can also thank your immune system for keeping your dope new shoulder tattoo from flaking off with the dead skin cells you lose every day, according to a team of French immunologists who tattooed the tails of mice. More
