Warm-ups play a crucial role in preventing injuries in both casual and competitive sports. They prepare the body for physical activity by gradually increasing heart rate and blood flow to muscles, enhancing overall performance. A well-structured warm-up routine increases joint mobility and muscle elasticity, reducing strain during intense activity. Dynamic stretching during warm-ups helps improve coordination and mental focus, which are vital for injury prevention. Additionally, proper warm-ups can signal the body to adapt to upcoming physical demands, ultimately promoting safer participation in sports and exercise.