Cách sử dụng
The word 'cardio' is a short form of the word 'cardiovascular,' which describes exercises that are good for the heart and lungs. You might hear people talking about doing cardio at the gym or going for a run to get some cardio in. Essentially, cardio is any kind of physical activity that gets your heart rate up and makes you breathe harder. It's good for your overall health and can help you build endurance and stamina. So if you hear someone talking about cardio, they're usually referring to exercises that are good for the heart and lungs, like running, cycling, or doing jumping jacks.