This document provides information about common sports-related injuries including sprains, contusions, concussions, dislocations, fractures, and strains. It describes the causes and symptoms of both acute injuries which happen suddenly during exercise or sports, and chronic injuries which develop over time from overuse. The document emphasizes the importance of proper training, equipment, health, and warm-up/stretching to prevent injuries and recommends RICE treatment (Rest, Ice, Compression, and Elevation) to reduce pain and swelling from acute injuries. Key terms related to safety during physical activity like dehydration, overexertion, hypothermia, and hyperthermia are also defined.