The importance of a warm-up before workouts lies in its role in preparing the body for physical activity. A proper warm-up increases blood flow to muscles, enhancing muscle elasticity and reducing the risk of injuries. It also raises heart rate and improves circulation, ensuring adequate oxygen supply during exercise. By incorporating dynamic stretches or light aerobic activities, individuals can enhance performance and minimize post-exercise soreness. Overall, warming up is a critical step in any fitness routine, promoting safety and effectiveness during workouts.