Heart and Lungs

In this lesson, you’ll discover how your heart and lungs are a team that keeps your body alive and moving. We’ll start by seeing how something as simple as deep breathing can calm your heart, then test it for ourselves by checking our heart rates at rest, after exercise, and after slow breathing.

You’ll also explore amazing examples of people who have learned to control their heart rate, like free divers and monks. Then we’ll zoom in to see how oxygen and carbon dioxide travel in a loop through your heart, lungs, and blood. By the end, you’ll understand how every breath and every heartbeat powers your body.

What you’ll learn:

• How your heart and lungs work together as a system
• How oxygen moves into your blood and carbon dioxide moves out