Hypertension is one of the “three highs” and one of the most common diseases among middle-aged and elderly people, and it is developing in a younger age. This is probably due to the high work pressure, irregular diet and environmental degradation of people nowadays. Hypertension is induced heart, blood and brain tubes, which shows how terrible hypertension is. Although hypertension is common, but there is no need to worry too much, as long as it is properly controlled, it does not affect people’s normal life and work. But if it is not well controlled, the consequences are unimaginable. The types and manifestations of hypertension vary greatly depending on individual circumstances. Some people with hypertension have normal blood pressure during the day and high blood pressure at night, which is not uncommon, but the danger of this condition is greater. The reasons for this are as follows: 1. The fluctuations of blood pressure in normal people are characterized by a trough at 3:00 a.m., followed by an upward trend. This fluctuation curve of blood pressure is like a long-handled ladle, so called spoon type 2, spoon type blood pressure refers to the night blood pressure drop more than 10% of the daytime blood pressure; if more than 20% is called deep spoon type blood pressure; if less than 10% is called non-spoon type blood pressure. 3, the average value of blood pressure at night is higher than the daytime, the ratio of day and night blood pressure change <0% blood pressure is called anti-spoon type blood pressure. In the middle-aged and elderly population, 24.6% of people's blood pressure increases at night instead of decreasing. As people age, the more people have elevated blood pressure at night. 4. Inverse arytenoid hypertension caused by elevated blood pressure at night is the culprit of damage to the heart, brain, kidneys and other organs. 63% of people with elevated blood pressure at night have had an asymptomatic cerebral infarction, and the risk of stroke and myocardial infarction increases threefold. 5, there is another situation, if it is simply high blood pressure at night, it is generally considered to be related to emotions, mental state, diet, exercise and other factors. It can be seen that the danger of anti-syndromic hypertension to the human body is great. If you find that you have trouble sleeping at night, feel dreamy or sleep less than 6 hours a day; your total serum cholesterol level is greater than 7.0mmol/L or fasting blood sugar is higher than 7.0mmol/L; you snore in your sleep; you have memory loss and feel dizzy, headache and weak when you first wake up in the morning, but the symptoms gradually reduce or disappear after you get up, you may have anti-adventurous hypertension.