For people who are normally suitable for running, two kilometers a day is very healthy, which can be intuitively reflected in the following aspects:

1, enhancing cardiopulmonary function. Running is a standard aerobic exercise, which can effectively increase the oxygen uptake of the heart and lungs, and at the same time increase the oxygen content of blood delivered to various organs of the body, and improve the work efficiency and quality of various organs!

2, keep the fat content relatively low, and effectively avoid various fatty diseases. The general principle of reducing fat is calorie intake.