Fingernails grow faster on the dominant hand, that means if your right handed the nails in your right hand grow faster. same goes with your left. Either way your middle finger grow quickest than all the nails. Your nails also grow faster in the summer and your hair grows twice as fast.
Nail polish was first used by the ancient Egyptians where royalties used bright colors like red or blue while the lower class woman were only allowed to use pale colors.
Nails,hoofs, horns and wool are made of the same element called keratin
THIS WORD
Onychophagy: The habit of biting one's nails