Exercise often recommended for improving cardiovascular fitness includes activities like running, cycling, swimming, and high-intensity interval training (HIIT). These forms of exercise elevate the heart rate, enhancing heart and lung function over time. Incorporating both steady-state and interval training into a routine can yield significant benefits, as they work to build endurance while improving overall heart health. Regular cardiovascular exercise also aids in weight control and reduces the risk of chronic diseases, making it a vital component of a healthy lifestyle.