<human>:  How does the body heal itself after an injury?
<bot>: The body typically begins the healing process by activating the immune system to help fight infection at the injury site. White blood cells, along with antibodies, are then released to help keep the wound free of harmful bacteria. As healing progresses, the body produces collagen, a protein that forms the foundation of connective tisssue, to help close the wound. More cells and nutrients are sent to the wound site to help reduce inflammation and promote healing. Finally, the body uses a process called remodeling to help build new tissue, restoring the area to its original state.