Why does your heart beat so fast sometimes?

Sometimes the heart beats fast for more reasons, can be a physiological phenomenon can also be the clinical manifestation of certain diseases, common diseases are heart disease, metabolic diseases, psychological diseases and so on.
1. The causes of rapid heartbeat in healthy people: overwork, strenuous exercise, nervousness, drinking a lot of alcohol, drinking coffee. These situations often appear rapid heartbeat phenomenon, such as physiological phenomenon, do not need to worry too much, after a little rest can be relieved.
2. Many diseases can also show the symptoms of rapid heartbeat, common diseases are.
(1) Heart disease: common atrial fibrillation, paroxysmal tachycardia and other arrhythmias, coronary heart disease, heart failure, cardiomyopathy, neurosis and so on can lead to rapid heartbeat symptoms;
(2) Metabolic diseases: for example, hyperthyroidism, nodular goiter, thyroid tumor, thyroid cancer and other lesions can often lead to rapid heartbeat;
(3) Psychological diseases: common anxiety disorders, mania, etc. can cause such symptoms.
If the symptoms of rapid heartbeat occur repeatedly over a long period of time, it is necessary to go to the regular hospital in time to avoid delaying the condition.