Pay attention to prevent dehydration, please jog step by step, so as not to cause too much burden to the heart and kidneys. Jogging 50KM, please do it under certain physical conditions, such as having enough rest and supplementing enough nutrition. It is recommended to do it on suburban roads with good air quality, which has a good effect on lung breathing! Carrying out such extreme sports in cities or industrial areas is very harmful to the respiratory system!