Tattoo dyes — especially red dye — can cause allergic skin reactions, resulting in an itchy rash at the tattoo site. This may occur even years after you get the tattoo.

"Tattoo inks today are permanent because of the fact that the dye molecules are too big for your body's immune system to take away," explained Anthony Lam, another team member.

Having to refrain from making sarcastic remarks when your offspring wish to dye their hair, Pierce their eyebrows or tattoo various parts of their person.