Running with fast heart rate is a normal phenomenon. When running, the heart will speed up blood ejection to meet the body’s oxygen demand, but when there is chest tightness, chest pain, palpitations, dizziness, blackouts, we should be alert to the emergence of heart disease, and we recommend that we go to a specialized hospital for examination. After ruling out heart disease, the amount of exercise should be appropriately reduced. Increased heart rate can be categorized into physiological, pathological and drug-induced. 1. Physiological: healthy people during exercise, emotional stress; after drinking alcohol, strong tea or coffee; 2. Pathological: hyperthyroidism, anemia, fever, atrial fibrillation, paroxysmal supraventricular tachycardia, beta-receptor hyperactivity syndrome, etc; 3. pharmacological: aminophylline, ephedrine, caffeine, thyroxine tablets, nifedipine extended-release tablets, etc. After ruling out the existence of heart disease unsuitable for exercise, the amount of exercise should be appropriately reduced to avoid excessive fatigue.