Cardio training, also known as cardiovascular exercise, involves activities that increase your heart rate and improve the efficiency of your heart and lungs. Common forms of cardio include running, cycling, swimming, and brisk walking. This type of exercise helps to enhance endurance, burn calories, and promote overall cardiovascular health. Engaging in regular cardio training can lead to numerous health benefits, such as reduced risk of heart disease, improved mood, and better weight management. It is recommended to include at least 150 minutes of moderate-intensity cardio each week, as suggested by health organizations like the American Heart Association.