When it's hot outside and you've been sweating, you get thirsty. Why? Thirst is a sign of dehydration (say: dee-hye-dray-shun). Dehydration means that your body doesn't have enough water in it to keep it working right. A person gets water by drinking and eating. You lose water when you sweat, urinate (pee), have diarrhea, or throw up. You even lose a little water when you breathe.
Our bodies need water to work properly. Usually, you can make up for the water you lose — like when you come in from outside and have a long, cool drink of water. If you don't replace the water your body has lost, you might start feeling sick. And if you go too long without the water you need, you can become very ill and might need to go to the hospital.
Many times kids get dehydrated when they are playing hard and having fun. Have you ever gotten really sweaty and red-faced when you've been playing? This often happens when it's hot outside, but it can happen indoors, too, like if you're practicing basketball in a gym.
Kids also can get dehydrated when they're sick. If you have a stomach virus (say: vye-rus), you might throw up or have diarrhea (say: dye-uh-ree-uh). On top of that, you probably don't feel very much like eating or drinking. If you have a sore throat, you might find it hard to swallow food or drink. And if you have a fever, you can lose fluids because water evaporates from your skin in an attempt to cool your body down. That's why your mom or dad tells you to drink a lot of fluids when you're sick.
In addition to being thirsty, here are some signs that a person might be dehydrated:
- feeling lightheaded, dizzy, or tired
- rapid heartbeat
- dry lips and mouth
Another sign of dehydration is not peeing as much. Normally, urine should be a pale yellow color. Dark or strong-smelling pee can be a sign of dehydration.
What to Do
If you can, try not to get dehydrated in the first place. If you're going to be going outside, it's a good idea to drink water before, during, and after you play, especially if it's hot. Dehydration can happen along with heat-related illnesses, such as heat exhaustion (say: ig-zos-chun) and heat stroke. In addition to drinking water, it's smart to dress in cool clothes and take breaks indoors or at least in the shade.
If you're sick, keep taking small sips of drinks and soups, even if you're not that thirsty or hungry. Eating an icepop is a great way to get fluids. How is an icepop a liquid? Well, it's basically frozen water and flavoring. The warmth in your mouth and stomach turns it from a solid to a liquid. Other foods, such as fruits and vegetables, contain water, too.