A cerebral vascular accident or stroke is when something bad happens to the brain. It's like when you break a toy and it doesn't work anymore. In the same way, when something bad happens to the brain, it stops working properly.
The brain is like the boss of the body. It controls how we move, talk, think and feel. The brain helps us to do everything we do in our daily life like playing, singing, and even sleeping. It does this by sending messages to different parts of the body. However, when something goes wrong with the brain, the messages can't get through properly and our body doesn't work as it should.
One way the brain can get hurt is if the blood vessels that carry blood to it get blocked or burst. A blood vessel is like a straw that carries blood. When it gets blocked, the blood can't get to the brain properly, and the brain doesn't get the nutrients and oxygen it needs to work. When this happens, the brain gets damaged and might stop working completely.
A stroke can make someone feel very sick and can affect how they move and talk. Some people might not be able to move one side of their body, some might not be able to talk, and some might not be able to remember things well.
There are different types of strokes, but they all mean that something has gone wrong in the brain. It is important to get help quickly if someone is having a stroke because the faster they get treatment, the better their chances of getting better. If someone you know is having trouble moving, talking, or remembering things, tell an adult to call for help right away.