Stress is too much, the heart rate tends to accelerate. Stress when the human sympathetic nerve in an excited state will cause the heart rate to increase, this situation is not good for the human body, so to avoid excessive stress, excessive tension. Usually learn to face stress, learn how to relieve stress, when stressed you can find someone to talk to or do deep breathing exercises to relax yourself. The normal heart rate is affected by many factors, such as emotional stress, excessive anxiety, strenuous exercise, after eating, fever and infection can cause the heart rate to accelerate, generally after the removal of the trigger will accelerate the heart rate will ease. If the heart rate is accelerated for a long time, it may cause cardiac insufficiency and enlargement of the heart chambers. An electrocardiogram should be done to clarify whether there is a rapid heart rate, a slow heart rate, and whether there are other arrhythmias.