what is cardio

Cardio, short for cardiovascular training, is any type of exercise that increases your heart rate and keeps it up for a prolonged period of time. It is also known as aerobic exercise, and it can be any rhythmic activity that raises your heart rate into your target heart zone. Cardio exercises can be done in many ways, including running, cycling, swimming, dancing, and even marching in place. The physical and mental benefits of cardio are numerous, including weight management, improved heart and lung function, and the release of natural painkillers. Cardio exercises can be done at low to moderate intensity, like jogging or an easy bike ride, or at high intensity, like HIIT. The American College of Sports Medicine recommends that people engage in at least 150 minutes of moderate-intensity cardio exercise per week. However, it is important to check with a doctor before beginning an exercise program to help reduce potential health issues or the worsening of any current symptoms.