High blood pressure & life expectancy
Untreated high blood pressure quietly shortens life; treated, its impact falls dramatically — the control matters more than the diagnosis.
Why it matters (the mechanism)
Sustained high pressure damages arteries, the heart, kidneys and brain, driving strokes and heart attacks. Medication and lifestyle bring it back into a safe range.
The evidence
Untreated hypertension reduces life expectancy by about 3–5 years; effective treatment cuts stroke risk by 35–40% (AHA/ACC 2023).
What to do
- Know your numbers — aim below ~120/80 mmHg with your clinician’s guidance.
- If prescribed medication, take it consistently; controlled BP largely removes the penalty.
- Reduce salt, excess alcohol and weight; add regular activity.
- Monitor at home periodically to catch drift early.
And the chance of reaching 100?
Your odds of reaching 100 rise steeply with your overall forecast. As an illustration, a forecast age of 85 implies roughly a 6.7% chance of reaching 100; a forecast of 92 implies around 21%. Factors like high blood pressure shift where your forecast lands. Get your personal figure in the calculator.
These figures are population-average estimates from peer-reviewed research, applied on top of the official life-table baseline for your country, sex and birth cohort — the US Social Security Administration period life tables, the UK Office for National Statistics, and the WHO Global Health Observatory. They describe statistical tendencies, not personal certainties, and are not medical advice.
Other factors
Frequently Asked Questions
See how high blood pressure and everything else combine in your forecast — plus your chance of reaching 100.
Life Expectancy Calculator →