Stretching before and after workouts is essential for injury prevention by enhancing flexibility and promoting better muscle function. Pre-workout stretching increases blood flow to muscles, warming them up and preparing the body for physical activity. This reduces the risk of strains or sprains during exercise. Post-workout stretching helps cool down muscles and can alleviate post-exercise soreness. It also encourages muscle recovery and promotes an increased range of motion over time, ultimately contributing to a safer and more effective fitness routine.