The specific causes of morning blood pressure is not clear, but is currently believed to be related to the following factors: 1, age, the elderly due to reduced arterial elasticity easily lead to a decline in blood pressure regulation ability, appear early morning hypertension; 2, treatment is not standardized, some patients use blood pressure drugs due to the scope of treatment, dosage form and other factors, and can not have the function of 24 hours to lower blood pressure, easy to happen early morning drug effect disappeared blood pressure Elevated phenomenon, at the same time some people irregularly taking antihypertensive drugs, will also lead to cause morning blood pressure; 3, disease and life factors, including metabolic syndrome, diabetes, high fasting blood sugar, excessive salt intake, mental tension, excessive smoking, excessive alcohol consumption, insomnia, etc..