According to China’s current hypertension guidelines, blood pressure 140/110 mmHg is elevated blood pressure, China’s current definition of hypertension, refers to the quiet state in the non-same day three measurements of blood pressure, systolic blood pressure greater than or equal to 140 mmHg, diastolic blood pressure greater than or equal to 90 mmHg or more is called hypertension. So whether the systolic blood pressure is greater than or equal to 140 mmHg, or diastolic blood pressure is greater than or equal to 90 mmHg are called hypertension, which includes systolic and diastolic blood pressure are elevated hypertension, also includes systolic blood pressure is normal, but diastolic blood pressure is elevated hypertension; also includes diastolic blood pressure is normal pure systolic blood pressure is elevated hypertension, this part of the population is called pure systolic hypertension to the elderly for more common;; Diastolic hypertension alone is more common in young people, and either systolic hypertension alone or diastolic hypertension alone is called elevated blood pressure.