When a doctor says "your blood pressure is high," you might wonder: how high? When is it dangerous? This article helps you understand it all in plain language.
What Exactly Is Blood Pressure?
Imagine a garden hose. When water flows through it, it presses against the hose walls — that's "water pressure." Blood pressure works the same way.
You'll see blood pressure as two numbers:
- The top number (systolic): pressure when your heart contracts and pushes blood out.
- The bottom number (diastolic): pressure when your heart relaxes between beats.
Is My Blood Pressure Normal?
| Category | Systolic | Diastolic |
|---|---|---|
| Normal | <120 | <80 |
| Elevated | 120-139 | 80-89 |
| Hypertension Stage 1 | 140-159 | 90-99 |
| Hypertension Stage 2 | ≥160 | ≥100 |
Why Is High Blood Pressure Dangerous?
High blood pressure is called the "silent killer." Over time it damages: heart (enlargement), brain (stroke risk), kidneys (decline), and eyes (vision damage).
How to Measure at Home
- Sit quietly for 5 minutes before measuring. No coffee or smoking.
- Sit in a chair with feet flat on the floor.
- Place the cuff on your upper arm at heart level.
- Measure morning and evening. Two readings each time, averaged.
How Well Is Your Blood Pressure Controlled?
Send us your BP records. TEDANCD physicians will assess whether you need a treatment adjustment.
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