The human body is an incredible piece of organic engineering and we learn more about it every day. From the brain to the heart, and especially the liver, the complex network of systems and organs work to keep us upright and healthy. Though some bodies are definitely more pleasing to the eye, they’re all miraculous in their own right. In case you’ve been putting your body through the ringer recently (Come and Chive It anyone?), here are some facts to remind you exactly how precious it is.