1. FAQs
  2. PreCardix®
  3. Blood Pressure Health

What do the blood pressure numbers mean?

The first step in understanding high blood pressure is learning what your numbers mean. Blood pressure is measured with two numbers: systolic (the higher number) and diastolic (the lower number) (e.g., 120/80 mmHg): Systolic pressure occurs when your heart contracts. Diastolic pressure occurs when your heart relaxes and fills with blood. Blood pressure is measured using millimeters of mercury (mmHg), a standardized measurement of pressure. The higher your systolic or diastolic blood pressure – and the longer it stays high – the greater the potential damage to your blood vessels. Always consult with your health care provider before making changes to your blood pressure management plan.