Understanding Blood Pressure
Blood pressure is the force of blood pushing against artery walls as the heart pumps. It is measured in two numbers: systolic (pressure during heartbeats) and diastolic (pressure between beats), expressed in millimeters of mercury (mmHg). Maintaining healthy blood pressure is essential for cardiovascular health.
Blood Pressure Categories
According to the American Heart Association, blood pressure readings fall into five categories: Normal (below 120/80), Elevated (120–129/<80), High Blood Pressure Stage 1 (130–139/80–89), High Blood Pressure Stage 2 (140+/90+), and Hypertensive Crisis (above 180/120). The higher category between systolic and diastolic determines the overall classification.
Tips for Healthy Blood Pressure
Regular exercise, a balanced diet low in sodium, maintaining a healthy weight, limiting alcohol, managing stress, and avoiding smoking can all help keep blood pressure within a normal range. Regular monitoring is recommended, especially for individuals with risk factors.
Frequently Asked Questions
How often should I check my blood pressure?
The AHA recommends adults with normal blood pressure check at least once a year. Those with elevated or high blood pressure may need more frequent monitoring as directed by their healthcare provider.
Can blood pressure vary throughout the day?
Yes. Blood pressure naturally fluctuates due to activity, stress, caffeine, and time of day. For accurate readings, measure at the same time daily while seated and relaxed.