Journeys: Heart. Stop 5

Pulse

Your pulse shows how fast your heart beats. Let's run! Tap the left foot and the right foot in turn.

When you run, your muscles need more oxygen, so the heart beats almost twice as fast. Now stop!

When you rest, the heart slows down. Touch the moon, it's time for bed.

While you sleep, your body needs less oxygen, so the heart beats slowly and rests too.