A fast heartbeat may be due to physiological reasons or pathological reasons, including drug factors, anemia, cardiac insufficiency, and hyperthyroidism.
Physiological reasons, the normal heartbeat is 60~100 beats per minute, if the normal person’s heartbeat will be fast during strenuous exercise, the heartbeat can be completely returned to normal after resting.
Drugs include ephedrine, aminophylline, atropine, etc. These drugs can promote sympathetic excitation causing fast heartbeat, especially after a little activity.
Severe anemia, cardiac insufficiency, and hyperthyroidism can cause fast heartbeat after slight activity. Blood tests, B-type brain natriuretic peptide precursor, a marker of heart failure, and thyroid function tests can be performed to confirm the diagnosis.
Fast heartbeat after strenuous activities can be relieved after resting, which is a physiological phenomenon and does not need to be treated. If you have a fast heartbeat after light exercise or daily activities, you need to go to the hospital immediately, complete the examination, make a clear diagnosis, and take medication according to the doctor’s instructions.