Suddenly feel the heart beating obviously, there are two reasons: 1, caused by neuropsychological factors, such as tension, anxiety, emotional excitement often cause sympathetic excitement, this will appear heart rate accelerated, appear abnormal feeling, the patient will feel the heart beating very obvious. Such a situation will usually be relieved on its own by stabilizing the emotions, if it lasts longer, it is recommended to go to the psychology department for psychological guidance; 2, caused by somatic diseases, the most common is the heart itself, such as arrhythmia, the most common are premature beats, supraventricular tachycardia, atrial fibrillation, etc.. In addition, it can also be seen in endocrine diseases, such as hyperthyroidism, and these conditions require patients to go to the hospital for further diagnosis and treatment.