Running is one of the very beneficial ways to improve cardiorespiratory function. When running, if you want to burn fat, generally control at 60%-80% of the maximum heart rate, this heart rate interval can effectively burn fat, but generally need to maintain more than 30 minutes to more fully burn fat. The maximum heart rate is generally calculated using a simple formula, namely 220 minus age, which is only applicable to about 50% of the population, meaning that many people are not applicable to this formula, than the calculated value is either high or low. In addition, other aerobic exercises, such as cycling, swimming, etc. can be used to burn fat sufficiently to achieve the purpose of weight control.