There is no such thing as “waking up in the morning to measure blood pressure is the most accurate”, as long as the method of measuring blood pressure is correct, there is no absolute time requirement. There is no absolute time requirement. Blood pressure can be measured at any point during the 24 hours of the day, and it fluctuates at different times of the day, depending on the person’s mental and physical state. As long as the measurement is done correctly, the measured blood pressure will be accurate. Take a 5-minute break before the blood pressure measurement. Do not smoke or drink strong tea for half an hour, and empty your bladder. The cuff is tightly fastened around the upper arm, with the lower edge of the cuff 2.5 centimeters above the crook of the elbow. The elbow is placed at the same level as the heart, and the probe of the stethoscope is placed at the brachial artery in the elbow socket. Blood pressure is measured by inflating quickly, at a constant rate, and deflating slowly. During deflation, the Koch sound is carefully listened to, the vertical height of the convex surface of the mercury column is observed, and measurements are repeated at 2-minute intervals, with the average of the two readings recorded. Patients are advised to check their blood pressure regularly on a daily basis and to seek prompt medical attention if there is any abnormality.