Blood pressure is often much higher in the afternoon than in the morning due to the type of blood pressure fluctuations, the type of blood pressure fluctuations include four types, so for different people the time period of the highest value of blood pressure is often different, generally speaking the most common type of blood pressure fluctuations belong to the ladle type of blood pressure, that is, high blood pressure during the day, low blood pressure in the evening, the blood pressure drops to the lowest state in the early morning. There are usually two spikes in blood pressure, from 6-8 a.m. and from 4-6 p.m. Therefore, for the afternoon blood pressure is much higher than that of the morning, it may be due to the fact that the peak blood pressure in the afternoon is significantly higher than that of other time periods, and it may also be due to the fact that the blood pressure in the morning is lowered by taking short-acting antihypertensive drugs in the morning, and the antihypertensive effect of antihypertensive drugs does not cover the afternoon, so that the blood pressure in the afternoon is significantly higher than that in the morning. In addition, the blood pressure may also increase in the afternoon due to exercise, so the combination of factors leads to a much higher blood pressure in the afternoon than in the morning.