Diastolic blood pressure definition

The force of blood against the walls of your blood vessels when your heart briefly relaxes between beats.

This is the lowest amount of pressure against your arteries and is stated as the second or bottom number in your blood pressure reading; it’s also the lower number in your reading.

Diastolic blood pressure comes from the word diastole.

Related terms: hypertension, prehypertension, systolic blood pressure

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