Warming up muscles before exercise is crucial for preparing the body for physical activity and reducing the risk of injury. A proper warm-up increases blood flow to the muscles, elevating their temperature and enhancing flexibility. This preparation helps improve overall performance by allowing for better range of motion and strength during activities. Warming up also mentally prepares athletes for the physical demands of their workout, fostering focus and concentration. Skipping the warm-up can lead to muscle strains and other injuries, underscoring the importance of this essential practice in any exercise routine.