The primary purpose of stretching muscles before and after exercise is to enhance flexibility and prevent injuries. Stretching prior to a workout increases blood flow to the muscles and prepares them for physical activity, reducing the risk of strains. Post-workout stretching aids in cooling down, helping to alleviate muscle soreness and promote recovery. Regular stretching can also improve overall range of motion, enhance athletic performance, and contribute to better posture. Integrating stretching into fitness routines is vital for maintaining optimal muscle function and supporting long-term physical health.