If the systolic blood pressure is 90-139mmHg and diastolic blood pressure is 60-89mmHg, it is the normal value of blood pressure. A person’s blood pressure is not static, but varies with mood, age, gender, and lifestyle habits. Exercise and emotional excitement can cause blood pressure to rise. Blood pressure is higher in the morning and lower in the evening. Women’s blood pressure is generally lower than men’s before menopause because the concentration of estrogen in women’s bodies is higher than men’s; after menopause the concentration of estrogen in women’s bodies decreases, and there is no significant difference between men’s and women’s blood pressure at this time. People who often eat salty, greasy food and high-fat food will also have higher blood pressure than those who eat a light diet. People who stay up late for a long time and work under stress also have higher blood pressure. With age, blood vessels gradually harden and blood pressure will also be higher than before.