Warming up before exercising is crucial for several reasons. It prepares the body for more intense physical activity by increasing blood flow to the muscles and enhancing flexibility. This process reduces the risk of injury and ensures the body functions optimally during the workout. A proper warm-up also allows for a gradual increase in heart rate, which helps improve overall performance. Engaging in dynamic stretches and mild aerobic movements during this phase significantly benefits both physical and mental readiness for exercise.