Adults should engage in aerobic exercise for at least 150 minutes per week at a moderate intensity or 75 minutes at a vigorous intensity, as recommended by health organizations. This can be broken down into sessions lasting at least 10 minutes each. Regular aerobic activity strengthens the heart, improves lung capacity, aids weight management, and promotes overall cardiovascular health. Consistency is key, and varying the types of aerobic activities can enhance enjoyment and adherence to a fitness routine.