Exercise can strengthen people's physique and play a role in preventing diseases and keeping fit. However, excessive exercise or improper exercise methods will lead to strong physical reactions and lead to some diseases, which must be paid attention to.

Syncope Syncope: The main symptoms are black eyes, dyspnea and disturbance of consciousness. The reason is that you are too nervous and intense during exercise, or you suddenly change your posture, or you consume too much blood sugar during strenuous exercise for a long time. In case of syncope, you should lie flat immediately, keep warm, drink sugar water or inject glucose.

Dizziness: Dizziness. In severe cases, you may have nausea and vomiting, and feel weak all over. This is because of excessive exercise or a poor grasp of the essentials of exercise. The method of prevention is to master the essentials of action correctly, and the amount of exercise should be gradually increased.

Asthma: Asthma usually occurs 5 ~ 10 minutes after strenuous exercise. Manifested as cyanosis of face and lips, dyspnea, etc. The reason is related to physical allergy, cold air stimulation to respiratory tract and other factors. Most patients can relieve themselves within an hour.

Abdominal pain: generally occurs during exercise, and is mostly caused by gastrointestinal spasm or liver and spleen congestion. Common reasons are: exercise on an empty stomach, exercise immediately after meals or overeating before exercise; When eating, drinking and swallowing saliva, the cold air brought into the esophagus stimulates excessive exercise, and too many carbonated drinks can also cause abdominal pain; Excessive sweating makes the body extremely tired; Insufficient warm-up activities and sudden strenuous exercise cause visceral dysfunction and lead to abdominal pain. When abdominal pain occurs during exercise, patients should rest immediately, apply hot compress to the abdomen and drink some drinks in moderation, which can generally relieve themselves.

Hematuria: Hematuria often occurs after strenuous exercise. The occurrence of hematuria is due to the contraction of renal blood vessels during strenuous exercise, the decrease of renal blood flow and the temporary lack of oxygen supply, which leads to the enhancement of renal tubular permeability. This situation needs immediate rest, and a week's rest can completely eliminate it. The prevention method is to gradually increase the amount of exercise, step by step, and avoid excessive exercise.