Exercises that improve cardiovascular fitness include various forms of aerobic exercise, such as running, cycling, swimming, and dancing. These activities elevate heart rate and enhance lung capacity, facilitating better oxygen transport and utilization in the body. High-Intensity Interval Training (HIIT) is another effective method that alternates short bursts of intense activity with recovery periods, maximizing cardiovascular benefits in a shorter time. Additionally, circuit training that combines aerobic and resistance exercises can also boost cardiovascular conditioning while improving muscular strength, leading to a well-rounded fitness routine.