The primary purpose of a warm-up before exercising is to prepare the body for physical activity, enhancing performance and reducing the risk of injuries. A proper warm-up increases heart rate and blood flow to muscles, improving flexibility and joint range of motion. This physiological preparation allows muscles and connective tissues to function optimally during exercise. A warm-up can also mentally prepare individuals, helping to focus their intentions and enhance motivation. Incorporating dynamic stretches and light aerobic activities into the warm-up routine further enhances readiness for the main workout session.