A high pressure of 158mmhg and a low pressure of 87mmhg is not normal and belongs to the first level of hypertension. Normal people have a high pressure (systolic) of 90~140mmhg and a low pressure (diastolic) of 60~90mmhg. The presence of a high pressure of 158mmhg and a low pressure of 87mmhg is abnormal and belongs to first-degree hypertension. Hypertension is a condition in which the pressure of flowing blood against the walls of blood vessels is persistently higher than normal. The causes of primary hypertension are mostly related to heredity, age, and poor lifestyle; the causes of secondary hypertension are mostly related to diseases, such as glomerulonephritis, brain tumors, and so on. Hypertensive patients will appear headache, fatigue, restlessness, arrhythmia and other symptoms, is a typical symptom of the disease, some patients will also be accompanied by left ventricular hypertrophy, heart failure, hyperlipidemia and other symptoms. High pressure 158mmhg low pressure 87mmhg is not normal, it is recommended that patients seek medical examination, with the doctor for standardized treatment. Pay attention to your diet, limit the intake of high-salt foods, rest more, avoid overwork, and maintain a regular routine.