Diastolic pressure is the lower number in a blood pressure reading, representing the pressure in your arteries when your heart is at rest between beats. It is an important measure of heart health, as it indicates how well your arteries are able to relax and fill with blood. A normal diastolic pressure typically ranges from 60 to 80 mmHg. High diastolic pressure can be a sign of hypertension, which may lead to serious health issues like heart disease or stroke. Regular monitoring of blood pressure, including diastolic pressure, is essential for maintaining overall cardiovascular health and preventing potential complications.