Traumatic brain injuries are dangerous, especially if they are not recognized and treated promptly. Readers discover that repeated brain injuries may result in effects such as changed personality, depression, and memory loss. In contact sports such as football and hockey, the chance of sustaining a concussion or other form of brain trauma increases dramatically, so this information is especially valuable for young athletes. Through detailed photographs and informative infographics, readers are presented with additional information about the effects of brain trauma as well as precautions they can take to avoid it.