DRINK UP!

What do you, the trees, and a hamster have in common? Give up? You all need water. All living things must have water to survive, whether they get it from a water fountain, a rain cloud, or a little bottle attached to the side of a hamster cage.

Without water, your body would stop working properly. Water makes up more than half of your body weight and a person can't survive for more than a few days without it. Why? Your body has lots of important jobs and it needs water to do many of them. For instance, your blood, which contains a lot of water, carries oxygen to all the cells of your body. Without oxygen, those tiny cells would die and your body would stop working.

Water is also in lymph (say: limf), a fluid that is part of your immune system, which helps you fight off illness. You need water to digest your food and get rid of waste, too. Water is needed for digestive juices, urine (pee), and poop.

Your body can help you stay properly hydrated by regulating the amount of water in your system. The body can hold on to water when you don't have enough or get rid of it if you have too much. If your pee has ever been very light yellow, your body might have been getting rid of excess water. When your pee is very dark yellow, it's holding on to water, so it's probably time to drink up.

You can help your body by drinking when you're thirsty and drinking extra water when it's warm out. Your body will be able to do all of its wonderful, waterful jobs and you'll feel great!