[Skip to Content]
Find care at Nemours Children's HealthDoctorsLocations

What Are Cells?

  • Listen
      mp3

Cells

Say: sells

Ever wonder what you're made of? The simple answer is cells. These are the smallest building block of every living thing on our planet, including you. You have trillions of cells in every part of your body that do everything from changing your food into energy to keeping you healthy by killing germs.