Eye color is determined by the amounts of melanin, pheomelanin, and eumelanin in the iris. Babies' eye color may change until about 1 year old, as most pigment is produced in the first six months.

Clear urine may mean you are drinking more water than your body needs. Dark yellow or brown pee usually means you're dehydrated. Pink or red pee could mean there's blood in it, which might be a sign ...