The normal blood pressure range for men is diastolic blood pressure <90 mmHg and systolic blood pressure <140 mmHg. The normal blood pressure range is not affected by gender. The prevalence of hypertension was not significantly different between males and females, and the prevalence of hypertension was positively correlated with age in both males and females. Hypertension is defined as a diastolic blood pressure of ≥90 mmHg and/or a systolic blood pressure of ≥140 mmHg when measured three times on non-same day in the quiet resting seated position without the use of antihypertensive medication. normal high blood pressure is defined as a diastolic blood pressure of 80-89 mmHg and/or a systolic blood pressure of 120-139 mmHg. Controlling body weight in the normal range, quitting smoking and limiting alcohol, and exercising appropriately play a positive role in avoiding the occurrence of high blood pressure.