The difference in heart rate per minute in the standing and lying position was defined as the difference in heart rate per minute in the standing and lying position. After recording the II-lead ECG in the horizontal position, the ECG is quickly risen within 5 seconds and the ECG continues to be recorded. Diabetes mellitus can cause damage to multiple systems in the body. How is the difference in standing and lying heart rate diagnosed? Extreme tachycardia: Statistically, adults with a heart rate of more than 100 beats per minute are called tachycardic. There are two types of tachycardia: physiological and pathological. Physiological tachycardia Physiological tachycardia is very common, and many factors affect the heart rate, such as body position change, physical activity, food digestion, emotional anxiety, pregnancy, excitement, fear, agitation, alcohol, smoking, tea, etc., can make the heart rate increase. In addition, age is also a factor in tachycardia, and children tend to have a faster heart rate. Sinus tachycardia: characterized by a gradual acceleration and slowing of the heart rate, generally the heart rate does not exceed 140 beats per minute, most of them do not have organic heart disease, patients with tachycardia usually have no obvious discomfort, sometimes there are symptoms such as panic and shortness of breath. Paroxysmal supraventricular tachycardia: The heart rate can reach 160-200 beats per minute, characterized by sudden onset and sudden stop. It can occur in patients with organic heart disease or in those without organic heart disease. During the attack, the patient suddenly feels panic and the heart rate increases for several minutes, hours or days, and then suddenly returns to the normal heart rate. During the attack, the patient feels palpitations, chest tightness, discomfort in the precordial region, and a feeling of swelling and throbbing in the head and neck. Patients without heart disease generally have no significant effect, but when the attack is long and the heart rate is above 200 beats per minute, the patient experiences blackness, dizziness, weakness, nausea and vomiting, or even sudden syncope and shock due to a drop in blood pressure. Tachycardia occurs in patients with coronary artery disease and can induce angina pectoris.