A vibrant cartoon with colours and smooth animation. Have you ever wondered what happens inside your body when you run and play? Let's go on a little adventure inside the human body! Our first stop is the heart! Imagine having a tiny pump inside your body that works all the time... even while you sleep! That amazing pump is your heart. The heart's job is to pump blood all around your body. But why does our body need blood? Because blood carries oxygen and nutrients to different parts of your body and helps them work properly. Now, put your hand on your chest. Can you feel the beating? Thump... thump... thump! Those are your hear