Daytime blood pressure of 108/75mmHg is normal, and 135/85mmHg at night is a normal high value blood pressure. Usually in a quiet state, the normal fluctuation range of blood pressure of healthy young people is between 100~120/60~80mmHg, so the daytime blood pressure 108/75mmHg is within the normal value of blood pressure. And night blood pressure 135/85mmHg is more than the normal range of blood pressure fluctuations, in the range of high blood pressure, but not yet belong to high blood pressure. The human body blood pressure will exist during the day, night fluctuations of rhythmic, such as a certain time during the day in the high value, and in the early morning in the trough, is the normal physiological fluctuations, the individual period of time the blood pressure value may also be excessive mental stress, smoking, increased activity and other factors caused by. If blood pressure rises and discomfort occurs, it is recommended to go to the hospital in time for early and standardized treatment.