Understanding Blood Pressure Readings - American Heart Association
Aug 14, 2025 · Diastolic blood pressure is the second (bottom/lower) number. It measures the pressure your blood is pushing against your artery walls while the heart muscle rests between beats.
What causes high diastolic pressure? Symptoms and treatment
May 13, 2025 · Systolic measures the pressure during the heart’s contraction, while diastolic is the pressure in the period between heartbeats. Many people put a lot of emphasis on the systolic number.
What Your Blood Pressure Numbers Really Mean - Verywell Health
Dec 15, 2025 · Diastolic blood pressure is considered dangerously low when it is 60 mmHg or lower and alarmingly high when it is 120 mmHg or over. If you receive multiple readings with these numbers, …
Diastolic blood pressure: How low is too low? | UAB News
May 17, 2015 · Systolic pressure, the force exerted on blood vessels when the heart beats, is the upper number. Diastolic pressure, the force exerted when the heart is at rest, is on the bottom — in more …
Blood pressure chart: What your reading means - Mayo Clinic
Dec 23, 2025 · Bottom number, called diastolic pressure. The bottom number measures the pressure in the arteries between heartbeats. The American College of Cardiology and the American Heart …
A look at diastolic blood pressure - Harvard Health
2 days ago · The bottom (diastolic) number in blood pressure plays an essential role in heart health. Diastolic pressure is the pressure during the resting phase between heartbeats, as coronary vessels …
Systolic Vs Diastolic: What Is The Difference ...
Apr 26, 2025 · Diastolic blood pressure is the bottom number in a blood pressure reading. It measures the pressure in your arteries while the heart is resting between beats. During diastole, the heart refills …
Isolated Diastolic Hypertension: Causes & Treatment
Nov 7, 2025 · Isolated diastolic hypertension means your bottom (diastolic) blood pressure is 80 or higher, but your top (systolic) blood pressure is normal. This usually affects people under age 55.
Understanding Diastolic and Systolic Blood Pressure - WebMD
Feb 13, 2025 · What Do Systolic and Diastolic Blood Pressure Numbers Mean? When you check your blood pressure, you get two numbers. The first, or top, number, is called systolic blood pressure. The …
Systolic vs Diastolic: Key Blood Pressure Differences Explained
Aug 22, 2025 · The diastolic pressure (bottom number) tells you the pressure in your arteries while your heart rests between beats. These two numbers make up your blood pressure reading, which doctors …