Most people only think about blood pressure when a doctor mentions it. It often feels like just another number, easy to ignore until it suddenly isn’t.
But behind that number lies a quiet balancing act. Push it too high, and the risks are well known. Push it too low, and questions start to emerge.
Now, new research suggests the line may be lower than many expected, reports Science Daily.
A lower target
A study from Mass General Brigham, published in Annals of Internal Medicine, indicates that aiming for a systolic blood pressure below 120 mm Hg could significantly improve long-term heart health.
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Using data from major sources including SPRINT and NHANES, researchers built models to estimate lifetime outcomes for patients under different treatment targets.
Their findings showed that stricter control was linked to fewer cases of heart attack, stroke, and heart failure compared with higher thresholds like 130 or 140 mm Hg.
Risks still matter
Lower numbers did not come without trade-offs. The analysis also highlighted an increased chance of side effects linked to medication.
These included:
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- Falls
- Kidney complications
- Low blood pressure episodes
- Slower heart rate
The researchers also factored in real-world inaccuracies in blood pressure readings, which can affect treatment decisions. Even with these uncertainties, the lower target still showed stronger overall benefits.
Cost and context
More intensive treatment was associated with higher healthcare costs, largely due to increased medication use and more frequent monitoring.
However, the study concluded that the approach remained cost-effective by standard medical benchmarks, estimating around $42,000 per quality-adjusted life-year gained.
The researchers emphasized that while the findings are strong at a population level, individual care should still be tailored. Not every patient will benefit equally from aggressive treatment.
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