How the Body Works

Why do we have bones? - bones make up the framework of your body, how many have you got and what are they made of?; the way we move - we use hundreds of muscles to move our bodies, it takes 15 muscles to smile!; outer wrapping - what does skin look like close up, how does hair grow and what are freckles?; brain power - find out how your brain controls everything you do from speaking to walking; super cells - your body is made of billions of cells!, different sorts of cells make muscle, bone and blood; what is blood? - blood carries food and oxygen around your body, pumped by the heart, your most powerful muscle; eating and digesting - find out how food and drink travel from one end of your body to the other; all about breathing - you need to breathe to stay alive, how does your body use the air it breathes in and out?; why we need to sleep - why do we sleep and what do our bodies do while we are asleep?; your senses - your senses of sight, hearing, smell, taste and touch tell your brain what is happening around you, how do they work?; how babies are made - discover how a baby's life begins and how it grows inside the mother's womb; growing up - see how a baby grows through childhood and adolescence, before becoming an adult; staying healthy - what can you do to look after your body and keep it fit and healthy?; feeling ill - your body can fight some illnesses on its own, but doctors use medicine to prevent or cure other diseases.