Normal blood pressure is measured in millimeters of mercury (mmHg) and shown as two numbers:
- Systolic (top number): pressure when the heart beats
- Diastolic (bottom number): pressure when the heart rests
A Blood pressure reading is considered normal or abnormal based on these ranges:
đź«€ Normal blood pressure ranges
âś… Normal
- Below 120 / 80 mmHg
- Example: 115/75
⚠️ Elevated (pre-high blood pressure)
- 120–129 / below 80
- Higher risk, but not yet hypertension
đź”´ High blood pressure (Hypertension)
- Stage 1: 130–139 / 80–89
- Stage 2: 140+ / 90+
🚨 Very high (urgent)
- 180 / 120 or higher → medical emergency risk
🧠Important notes
- Blood pressure naturally changes during the day
- Stress, exercise, caffeine, and sleep affect readings
- One reading is not enough for diagnosis—multiple readings are needed
🧠Bottom line
- Ideal: around 120/80 or lower
- Consistently above 130/80 may need attention
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