Normal Diastolic Blood Pressure

A diastolic blood pressure between 80 and 89 indicates prehypertension.

Normal diastolic blood pressure. Your blood pressure may be normal high or low. 80 89 is stage 1. A normal diastolic blood pressure is lower than 80. The diastolic reading or the bottom number is the pressure in the arteries when the heart rests between beats.

This is the time when the heart fills with blood and gets oxygen. Researchers are starting to give this condition more attention. But even if your diastolic number is lower than 80 you can have elevated blood pressure if the systolic reading is 120 129. High blood pressure is also referred to as hypertension and low blood pressure is called hypotension.

Low diastolic blood pressure or isolated diastolic blood pressure is when the diastolic blood pressure falls below 60 mm hg while the systolic blood pressure remains at a normal level. We ll tell you why.