Why do we have to drink water?

Your body needs water because it gets thirsty. Water helps your mouth feel nice. It helps pee come out. It helps you run and play.

We have to drink water because every part of your body uses it to work. Water helps your mouth stay wet, helps food move, helps you cool down when you sweat, and helps pee carry yucky stuff out. If you do not drink, you feel dry, tired, and headachy, like a plant drooping without a drink.

We need water because our bodies are mostly made of it, and it helps many jobs happen. Cells, the tiny building blocks of your body, need water to stay the right shape and do their work. Blood uses water to carry food and oxygen around. Sweat uses water to cool you down, and pee uses water to carry waste out. Fun fact: your brain is about three-quarters water, so drinking helps your thinking machine work well.