Strong heartbeat with tremor may be caused by physiological reasons, or may be caused by arrhythmia, hyperthyroidism and other pathological reasons. 1. Physiological causes: patients who have recently been overstressed, stressed, or overworked may experience an obvious heartbeat and tremor. If there are no other symptoms, no special treatment is needed, and the symptoms can be relieved after lifestyle changes. 2. Arrhythmia: Arrhythmia is usually caused by chest surgery, sleep disorders, emotional changes, etc. Early on, patients will experience different degrees of palpitations (accelerated heartbeat, often accompanied by panic), sweating, breathlessness, fatigue and other symptoms, with the development of the disease, the patient will also experience tachycardia, body tremor, darkness, dizziness and other symptoms, and a small portion of the patients will also experience sudden death. 3. Hyperthyroidism: Hyperthyroidism is usually caused by family genetics, intense mental stimulation, excessive iodine intake, etc. Patients usually do not have specific symptoms in the early stage, with the development of the disease, the patient will appear persistent rapid heartbeat, weight loss, hyperphagia, excessive sweating and other symptoms, and some patients will also experience body tremor, hand tremor symptoms. There are many reasons for the strong heartbeat and tremor, the specific cause is still to go to the hospital to determine the cause of the examination, after diagnosis and treatment as prescribed by the doctor.