Hypothermia Say: hi-poh-THUR-mee-uh If you've ever been outside on a freezing day without your coat, you know how quickly your body gets cold. Hypothermia is when the body gets so cold that it can't warm itself up again. This can be dangerous because the organs inside the body will stop working if they get too cold. So be sure to bundle up! Back to Articles Related Articles Word! Frostbite Brrrrr . . . pass the hat and mittens, please! Read More How to Be Safe in Ice and Snow Winter is a fun time of year. But while you're out having fun, you have to know how to be safe. Check out our article for kids to learn how to stay safe in snow and cold weather. Read More Winter Sports: Sledding, Skiing, Snowboarding, Skating You'll have more fun if you stay safe in the cold and snow. Find out how in this article for kids. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.