Understanding Blood Pressure
Blood pressure is measured in millimeters of mercury (mmHg) with two numbers: systolic (pressure when the heart beats) over diastolic (pressure between beats). A reading of 120/80 mmHg is spoken as "120 over 80."
How to Get Accurate Readings
- Sit quietly for 5 minutes before measuring
- Don't smoke, drink caffeine, or exercise within 30 minutes
- Sit with your back supported, feet flat, arm supported at heart level
- Take 2-3 readings one minute apart and average them
- Measure at the same time each day
Frequently Asked Questions
What causes high blood pressure? Risk factors include excess sodium, lack of exercise, obesity, stress, age, family history, and certain medical conditions.
Can I lower blood pressure naturally? Yes — reduce sodium, exercise regularly, maintain healthy weight, limit alcohol, manage stress, and eat a DASH-style diet rich in fruits, vegetables, and whole grains.