High pressure is normal low pressure is high and may cause dizziness, headache, fatigue, palpitations, blurred vision and other discomforts. Usually the normal range of blood pressure for a normal adult in a quiet state is 120/90mmhg. If the average of 3 measurements taken on non-same day >140/90mmhg, hypertension can be diagnosed. Usually, high blood pressure is normal and low pressure is high, mainly diastolic blood pressure > 90mmhg, can also be diagnosed as hypertension. Clinically, elevated blood pressure will make the cerebral blood vessels undergo ischemia and degeneration, which will cause dizziness, headache, blurred vision and other uncomfortable symptoms. Secondly, it also leads to increased pressure load on the heart, causing catecholamines to stimulate cardiomyocyte hypertrophy, resulting in fatigue, palpitations and other discomforts. After the diagnosis of hypertension is confirmed, lifestyle interventions are needed, such as reducing weight, reducing fat intake, quitting smoking and limiting alcohol. Hydrochlorothiazide, nifedipine, erapril, metoprolol and other blood pressure-lowering drugs can be chosen for treatment if necessary. If high pressure is normal and low pressure is high, it is recommended to consult the cardiovascular medicine department in time for treatment under the guidance of the doctor.