What Makes Your Heart Beat?

Your heart is like a pump that never stops working, it pushes blood around your body so you can run, play, and even sleep.

Imagine you have a toy car. When you press the go button, it zooms forward. Your heart works kind of like that toy car. Inside your chest is a muscle called the heart, and it has four special rooms. These rooms squeeze and relax to move blood through your body.

Now imagine you're on a swing. When someone pushes you, you go up high, then come back down. Your heart does something similar with every beat. It gets excited (like being pushed), then it relaxes (like coming back down). This exciting and relaxing happens over and over again, that's why your heart beats.

Each time your heart beats, it sends blood full of oxygen to all parts of your body, just like a superhero giving you energy to play all day! Your heart is like a pump that never stops working, it pushes blood around your body so you can run, play, and even sleep.