Reflexes

A reflex is something your body does all by itself. You do not have to decide to do it. If you touch something hot, your hand pulls back right away. That is a reflex. Reflexes help keep you safe from harm.

How Reflexes Work

Reflexes happen because of your nerves. Nerves are like wires that carry messages in your body. When you touch something hot, a nerve sends a quick message. The message goes to your spine and then back to your muscles. All this happens in less than a second.

Types of Reflexes

There are many reflexes in your body. Blinking when something comes near your eye is a reflex. Sneezing to clear your nose is too. Doctors sometimes tap your knee to test a reflex. If your leg kicks, your reflexes are working fine.

Fun Facts

• Babies are born with special reflexes, like grabbing your finger.
• Blinking is a reflex that happens about 15 to 20 times a minute.
• Reflexes can be faster than you can think.

Did You Know?

Your body has a reflex that makes you shiver when you are cold to help warm you up.