Breathing patterns significantly affect exercise performance by influencing oxygen delivery to muscles and the efficiency of carbon dioxide removal. Proper breathing techniques, such as diaphragmatic breathing, can enhance oxygen intake and reduce feelings of fatigue. During intense workouts, controlling breath helps maintain focus and optimal heart rate. In contrast, shallow or erratic breathing can diminish athletic performance and lead to dizziness or muscle cramps. By mastering breathing techniques, individuals can improve their endurance, enhance overall performance, and promote a greater sense of control during their exercise routines.