Elevated blood pressure can be seen in the following situations: 1. The rhythm of blood pressure in normal healthy people is two peaks and a valley, long-handled spoon type, that is, the blood pressure fluctuates at a higher level during the day, gradually decreases from 8 pm, gradually drops to the lowest valley at 2-3 pm at night, the blood pressure rises sharply in the early morning, reaching the highest peak at 6-8 am, and then the blood pressure continues to fluctuate at a higher level, to 4-6 pm the second high peak, and later will gradually decline, which is a normal physiological change. Some patients will appear in the daytime blood pressure is not high, the night blood pressure rises, inverse spoon type, mostly seen in patients with sleep apnea; 2, the impact of mental state, people in anger, tension, fear, fear, excitement and pain, etc. may make the systolic blood pressure rise, while the diastolic blood pressure does not rise; 3, the impact of seasonal factors, stimulated by cold will lead to vasoconstriction, causing blood pressure will rise, in the high temperature In a high temperature environment, blood pressure will be lowered because of vasodilation; 4, blood pressure can also be raised after exercise.