Cardiovascular (CV) means heart and lungs. CV exercise is anything that makes the heart and lungs work harder. You can choose the intensity and you can choose the timing based on what you want to achieve, but step one is to get started. Walking, running, skipping, swimming, cycling, rowing, stepping and dancing are all CV exercises and there are many more. You get your body moving beyond the everyday requirements, your heart and lungs work harder, your metabolic rate rises,...