Hypertension — high blood pressure — is called the silent killer for good reason. It causes no pain, no obvious symptoms, and often no warning at all. Yet sustained high blood pressure silently damages blood vessels, the heart, the kidneys, and the brain over years, setting the stage for heart attack, stroke, heart failure, and kidney disease. In India, fewer than 1 in 8 people with hypertension have it adequately controlled.
Reading Your Blood Pressure Numbers
A blood pressure reading has two numbers: systolic (top number) — pressure when the heart beats, and diastolic (bottom number) — pressure when the heart rests between beats.
| Category | Systolic | Diastolic |
|---|---|---|
| Normal | Less than 120 | Less than 80 |
| Elevated | 120–129 | Less than 80 |
| High BP Stage 1 | 130–139 | 80–89 |
| High BP Stage 2 | 140 or higher | 90 or higher |
| Hypertensive Crisis | Higher than 180 | Higher than 120 |
Risk Factors You Can Control
- High sodium (salt) intake
- Excess alcohol consumption
- Physical inactivity
- Overweight or obesity
- Smoking
- Chronic stress
- Poor sleep
- High processed food intake
The DASH Diet: Proven to Lower BP
The Dietary Approaches to Stop Hypertension (DASH) diet reduces systolic blood pressure by 8–14 mmHg — comparable to many medications. Key principles:
- Reduce sodium to less than 2,300 mg per day (less than 1 teaspoon of salt)
- Increase potassium (bananas, sweet potatoes, beans, leafy greens, dairy)
- Eat more fibre (whole grains, fruits, vegetables, legumes)
- Reduce red and processed meats
- Limit sugar-sweetened beverages
Lifestyle Changes That Work
Each of these lifestyle modifications can reduce systolic BP by a measurable amount:
- Weight loss: 1 mmHg per kg lost
- Exercise (30 min/day, 5 days/week): 4–9 mmHg
- DASH diet: 8–14 mmHg
- Sodium reduction: 2–8 mmHg
- Alcohol reduction: 2–4 mmHg
- Quitting smoking: Significant improvement within weeks
Medication: When It's Needed
If lifestyle changes alone cannot bring BP to target — or if your BP is very high — medication is appropriate, necessary, and life-saving. Modern antihypertensive drugs are safe, effective, and generally well-tolerated. The most common classes include ACE inhibitors, ARBs, calcium channel blockers, and diuretics. Do not stop medications without consulting your doctor, even when you feel well — the whole point is preventing a future event.
Monitor at Home
Home blood pressure monitoring gives a more accurate picture of your true BP than single clinic measurements (which are affected by "white coat hypertension"). Measure BP at the same time every morning, after 5 minutes of rest, before breakfast and medications. Keep a log and share it with your doctor at every visit.
