The contraindications and common sense of morning running include: poor physique should not run in the morning on an empty stomach, warm up before running in the morning, and stretch after running. 1. morning running on an empty stomach: poor physique morning running on an empty stomach is easy to cause hypoglycemia, dizziness, panic, sweating, fatigue and other discomforts, so this group of people are recommended to eat a small amount of food before running in the morning. 2. Warm up before running in the morning: after getting up in the morning, the body organs will not all wake up immediately, need to do some warm-up exercises to wake up the body organs, can reduce the damage. 3. Stretching after running: Stretching after running in the morning can effectively relieve muscle pain after exercise, stretching can effectively relieve the discomfort of the second day. Note that do not eat breakfast immediately after morning running, otherwise it will easily lead to indigestion, should be 30 minutes after the appropriate food.