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The human body is made up of more than 60 trillion cells that work together to keep us alive and functioning properly. These cells are the building blocks of our bodies and they come in many different forms, each with its own special job to do. The cells in your skin help to protect you from harm, while the cells in your muscles help to move you around. The cells in your brain help you think and learn new things. The human body is a complex system that requires all of these different types of cells working together in order for it to function properly. If any one type of cell becomes damaged or stops working, it can cause problems for the entire body. Fortunately, our bodies have an amazing ability to heal themselves when we get hurt. When you cut yourself, your skin cells work quickly to close up the wound and prevent infection. When you break a bone, your bone cells work to mend it back together again. This incredible process is all made possible by the hardworking cells that make up our bodies. They are the true heroes of our health, working tirelessly behind the scenes to keep us alive and well.