Five Risk Factors Cut Life Expectancy by Over a Decade

This landmark study analyzed data from over 2 million participants across 39 countries to quantify how five classic cardiovascular risk factors affect lifetime health outcomes. The research represents one of the largest investigations into how modifiable risk factors impact both cardiovascular disease-free survival and overall longevity.

Researchers tracked participants from age 50 to 90, examining the presence or absence of five key risk factors: hypertension, high cholesterol, diabetes, obesity/underweight, and smoking. They calculated lifetime risks of cardiovascular disease and death, plus estimated additional healthy years gained by avoiding these risk factors.

The results were striking. People with all five risk factors faced a 38% lifetime cardiovascular disease risk (men) and 24% (women). In contrast, those without any risk factors gained an additional 13.3 years free of cardiovascular disease (women) and 10.6 years (men). Total life expectancy increased by 14.5 years for women and 11.8 years for men when all risk factors were absent.

The study also identified which interventions provide the biggest benefits when implemented in midlife. Controlling hypertension between ages 55-60 yielded the most additional cardiovascular disease-free years, while smoking cessation in the same age range provided the greatest overall survival benefit.

These findings underscore the profound impact of preventable risk factors on healthspan and lifespan. The research provides compelling evidence that aggressive risk factor modification in midlife can add over a decade of healthy years—a powerful argument for prioritizing cardiovascular prevention strategies.