You’re sitting still, doing nothing…

but your heart is still beating.

Thump. Thump. Thump.

You didn’t tell it to move.

So why won’t it ever stop?

What is blood even doing inside you all day?

Why does your heart beat faster when you run?

And what would happen if it took a tiny break?

It turns out your heart and blood have a job they can’t pause for even a second.