Cardiovascular fitness refers to the ability of the heart and lungs to supply oxygen and energy to the muscles during physical activity. Improving cardiovascular fitness can lead to numerous health benefits, including a lower risk of heart disease, stroke, and diabetes. Common forms of cardiovascular exercise include running, cycling, swimming, and dancing. Engaging in regular cardiovascular exercise can help maintain a healthy weight, improve mood, and increase energy levels. A strong cardiovascular fitness level is an important aspect of overall physical health and can contribute to a longer and healthier life.