Cardio, short for cardiovascular exercise, refers to any activity that raises your heart rate and improves the efficiency of your heart and lungs. Common forms of cardio include activities like running, cycling, swimming, and brisk walking. Engaging in regular cardio workouts can enhance overall fitness, boost endurance, and help maintain a healthy weight. In addition to physical benefits, cardio exercises can also improve mental health by reducing stress and anxiety. Activities like yoga and dance can also provide cardiovascular benefits while being enjoyable. Incorporating cardio into your routine can lead to a healthier lifestyle and increased energy levels.