Try to run on an empty stomach in the morning, because running on a full stomach can easily lead to abdominal pain and other uncomfortable symptoms. Running in the morning is a very good habit. Keeping running for about 40 minutes a day, more than four times a week, can effectively increase lung capacity, exercise muscles and bones and other tissues, and at the same time is conducive to weight control. If you run in the morning, it is best to run on an empty stomach, because running on a full stomach will make the blood flow away from the digestive system and towards the muscles, bones and other tissues, resulting in insufficient blood flow to the stomach, which is easy to cause indigestion, and in serious cases, even trigger more obvious symptoms such as abdominal pain, nausea, vomiting and so on. If you are a diabetic patient needs to be under the guidance of the doctor to choose the appropriate exercise, too intense exercise may cause blood sugar fluctuations drastically, affecting the condition. Other chronic disease patients also need to be under the guidance of the doctor to carry out appropriate exercise.