Dizziness and blurred heartbeat can be caused by a variety of reasons, physiological and pathological changes can occur, commonly associated with cardiovascular diseases such as cardiac arrhythmia, hypoglycemia, hyperthyroidism and other non-cardiovascular diseases. Physiological: such as emotional excitement, long-term late at night, strenuous exercise and other causes of heart rate compensatory acceleration, cerebral blood supply is insufficient to appear temporary dizziness and dizziness, generally no special treatment. Pathologic: 1. Cardiovascular diseases: more common, such as ventricular tachycardia, supraventricular tachycardia, pre-excitation syndrome and other cardiac arrhythmias, resulting in insufficient blood supply to the brain and thus dizziness. 2. Non-cardiovascular diseases: such as hypoglycemia, hyperthyroidism, anemia, fever, etc., can lead to accelerated heart rate, dizziness and other symptoms. It is recommended that patients with symptoms of dizziness, dizziness and rapid heart rate should go to the cardiology department of the hospital in a timely manner to clarify the cause of the disease.