But Why?: How Does Your Heart Work?

How does your heart keep you alive?

How does it pump blood? Why is blood so important? Why do children have heart surgeries? Why is a baby’s heartbeat faster before it’s born? Why does blood rush to your head when you’re upside down? Why can you feel your heart in your head when you’re lying still or under water?

In this episode of But Why, we’re going talking about a very special muscle! It keeps us alive and it has its own special rhythm: the heart. Pediatric cardiologist Dr. Jane Crosson from Johns Hopkins Hospital answers questions about the heart.

 

But Why is a show led by you, kids!

You ask the questions and we find the answers. It’s a big interesting world out there. On But Why, we tackle topics large and small, about nature, words, even the end of the world.


Anatomy & Physiology, Biology
K-6, Middle School

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This episode features a really cool coloring page by Vermont artist Hilary Ann Love Glass. Download and print it here. You can color as you listen!