Your heart is like a secret engine inside you. It never stops, even when you're sleeping! But what does it actually do all day long?
Your Heart's Job
Your heart's main job is to push blood around your body. Think of blood like tiny delivery trucks carrying good stuff to all your body parts. It brings fuel and takes away trash!
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It's a Muscle!
Your heart is a special muscle. It's about the size of your fist. Make a fist! That's how big your heart is!
Blood's Big Trip
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Heart
The big pump!
Your heart pushes fresh, red blood out to all your body parts.
Heart Beats—100,000/daySize—Your fist