Sinus tachycardia is a sinus tachycardia that recovers in 5 to 10 minutes when caused by physical factors such as strenuous exercise and emotional stress. If it is caused by medication or disease, the recovery time may be between 1 week and 2 months. There are many causes of sinus tachycardia, such as strenuous exercise, emotional excitement, alcohol, tea and other physiological factors, usually return to normal after appropriate rest, emotional stabilization, recovery time between 5 ~ 10 minutes. At the same time, medication, fever, anemia, hyperthyroidism, etc. can lead to sinus tachycardia, usually requires treatment to return to normal, the time is not yet fixed, it may take 1 week to 2 months, or even longer. Mild sinus tachycardia has no obvious symptoms, but some severe cases may experience palpitations, chest tightness, weakness, dizziness and other discomforts, which have an impact on the quality of life. Sinus tachycardia patients should pay attention to rest, ensure sufficient sleep time, pay attention to diet, and maintain physical and mental happiness. Sinus tachycardia patients are advised to undergo further detailed examination to clarify the cause of the disease and then follow the doctor’s instructions for treatment, so as to promote the recovery of the body’s health. Some people should pay attention to regular medical review to monitor changes in their condition.