Key exercises for improving endurance include long-distance running, cycling, swimming, and circuit training. Activities like interval training—alternating high-intensity bursts with recovery periods—also effectively build endurance. Incorporating cardiovascular workouts along with strength training helps enhance muscle stamina, making it easier to sustain prolonged activity. Exercises like rowing and hiking can also contribute to endurance improvements by engaging multiple muscle groups. Consistency in training, gradual progression, and cross-training are essential components that further bolster endurance capabilities and overall cardiovascular fitness.