In general, the normal heart rate range is 60-100 beats/min, the heart rate of 140 beats/min belongs to the tachycardia, can live a few days can not be generalized, can be based on whether to affect the life of a comprehensive judgment, divided into physiological and pathological. If the heart rate is around 140 beats per minute due to physiological factors, it is usually transient and will not affect life expectancy without treatment. However, if pathological factors lead to the situation, not to deal with may affect the life of the patient, and may even die suddenly at any time. 1, physiological: common in fitness exercise, physical labor, excitement, tension, fear, smoking, drinking alcohol, as well as drinking strong tea, coffee, etc., usually easy to cause tachycardia, manifested as a short period of time, rapid increase in heart rate, through rest and adjust the mood, the heart rate will gradually 2, pathological: common in heart disease caused by rapid arrhythmias, such as atrial fibrillation, atrial flutter, and cardiogenic cause of heart failure, angina pectoris, and non-cardiogenic diseases such as hyperthyroidism, hypotension, anemia can also lead to tachycardia, will appear more dizziness, palpitations, chest tightness, coma and other symptoms, do not deal with may affect Survival time. If some serious diseases are not treated in time, the condition may be life-threatening in case of sudden onset, and death can be caused by untimely resuscitation. If the disease is well controlled after treatment, survival time is usually not affected.