Water is what a lot of living things need. The average human body is made up of over 70% water! How is there so much water in our bodies? Water actually gives cells their shape. Cells in your body need water to stay strong and to allow the reactions that happen in them. Water also helps us digest our food and even helps us get rid of things that get stuck in our eyes! Water is all around our bodies because we need that water to preform basic body functions!