The reason why the heart beats faster when you get excited is that when you get excited, it will cause the sympathetic nervous tension to increase significantly, and at the same time, the level of adrenaline, norepinephrine and other hormones secreted by the body will also increase, which will make the heart beat faster due to the regulation of the nerves and body fluids. This kind of heartbeat acceleration is temporary, timely control of agitation, can soon make the heart rate back to normal. If the patient suffers from serious organic heart disease, such as coronary heart disease, heart failure, etc., to avoid emotional fluctuations, so as not to cause agitation leads to a faster heart rate, and cause myocardial oxygen consumption and cardiac load increase, which induces the aggravation of the underlying cardiac disease, resulting in adverse consequences.