Never too late for the heart: Lessons for midlife cardiovascular disease prevention

SUMMARY

This study examined the impact of 5 common and preventable risk factors, such as high blood pressure, high cholesterol, diabetes, excess weight, and smoking, on long-term health.¹ The research focused on how these factors influence the number of years people live without developing heart disease or facing early death.

The study analysed information from more than 2 million adults in 39 countries. It compared the health outcomes of individuals who had these risk factors at age 50 with those who did not, and examined how changes in these factors between the ages of 55 and 60 influenced their future health.

The results were notable. Individuals who had none of the risk factors at age 50 lived significantly longer and spent more than 10 extra years free from heart disease compared with those who had all the risk factors. Their overall life expectancy was also higher; women lived roughly 15 years longer, and men about 12 years longer.

The study further showed that improving health even in midlife can make a meaningful difference. Reducing blood pressure, quitting smoking, and addressing other risk factors between the ages of 55 and 60 were linked to longer, healthier lives. Controlling high blood pressure added the most years free of heart disease (2.4 years in women and 1.2 years in men), while stopping smoking provided the greatest increase in years free from premature death (1.7 years).

COMMENT

Using information from more than 2 million people across 133 cohorts in 39 countries, this pooled analysis provides a detailed understanding of how 5 major risk factors, such as high blood pressure, elevated non-high-density lipoprotein cholesterol, diabetes, unhealthy body weight, and smoking, impact the lifetime risk of cardiovascular disease (CVD) and overall mortality. By applying harmonized individual-level data and sex-specific survival models that accounted for regional mortality patterns, the study estimated both CVD and all-cause mortality up to age 90. It also introduced the concepts of ‘disease-free life years’ and ‘life years gained,’ providing clear measures to highlight the advantages of improving these risk factors.

By using Weibull survival models that incorporate changes in risk over time and consider other potential causes of death, the analysis provides a more comprehensive view of how cardiovascular risk evolves across the lifespan, surpassing the limitations of standard 10-year risk estimates. It underscores the powerful combined effect of midlife risk factors, making the conclusions particularly valuable for healthcare professionals and policymakers.

A major strength of this study is its inclusiveness. Drawing data from 39 countries, including low and middle-income regions, it reflects the global diversity of CVD risk, addressing the western bias of earlier models.² The Global Cardiovascular Risk Consortium (GCVRC) standardized definitions and harmonized data across cohorts, improving comparability and yielding the most globally representative lifetime risk estimates to date. Long-term follow-up enhances reliability by accounting for cumulative exposures over decades.

Even among individuals without any of the 5 major risk factors, the lifetime risk of cardiovascular disease remained 13% for women and 21% for men, showing that age, heredity, and environmental influences still play a role. Nonetheless, the results are encouraging; people who reached age 50 without these risk factors enjoyed more than 10 additional years free from cardiovascular disease compared with those who had all the risk factors. Improvements made in midlife, even after the age of 55, also yielded meaningful benefits. Controlling high blood pressure contributed the largest increase in years lived without disease, while quitting smoking led to the greatest improvement in overall life expectancy. The key message is that efforts to prevent CVD remain worthwhile well beyond early adulthood.

The insights gained from this study have profound relevance for India, where CVD often manifests nearly a decade earlier than in western populations.³ India faces a dual challenge: rising prevalence of hypertension, diabetes, obesity, and dyslipidaemia alongside inequities in healthcare access. Nearly 1 in 3 Indian adults has hypertension, yet few achieve adequate control.^4,5 Diabetes prevalence continues to rise with urbanization,⁶ while tobacco use, both smoking and smokeless, remains widespread.⁷ The coexistence of hypertension and diabetes, common in India, amplifies risk and accelerates the early onset of coronary artery disease.⁸ The observation that individuals who reach age 50 without major risk factors enjoy 10–13 additional years free from CVD highlights the importance of compre-hensive, multi-risk prevention strategies rather than focusing on single conditions.

From a public health standpoint, these results underscore the importance of further strengthening India’s primary healthcare system, especially Ayushman Arogya Mandirs and Health and Wellness Centres, which play a crucial role in screening and managing chronic conditions. Regular checks for blood pressure, blood sugar, lipid levels, and tobacco use can help identify individuals at higher risk at an early stage. Since effective blood pressure control leads to the greatest increase in years lived free of disease, improving early detection and ensuring consistent treatment should remain key priorities.⁹ Community-based, team-delivered care involving nurses and health workers,^10–13 simplified protocols and fixed-dose combination therapies, which have already proven effective in Indian trials, should be scaled up nationally.⁹

The study’s findings on the benefits of quitting smoking are particularly relevant for India, where tobacco use continues to be a major preventable cause of death. Enhancing tobacco control measures, such as increasing taxes, enforcing advertising restrictions, and expanding access to cessation services, can lead to substantial improvements in health. Notably, the evidence that stopping smoking even in midlife adds several years of healthy life provides strong encouragement for adults who may feel it is ‘too late’ to make a change.

From a policy perspective, these findings underscore the importance of enhancing the coordination of noncommunicable disease initiatives within the National Programme for Prevention and Control of Cancer, Diabetes, Cardiovascular Diseases, and Stroke (NP-NCD). Continued investment in prevention, early detection, and long-term management can deliver substantial benefits over time. The use of digital systems, such as electronic health records and population-based registries, can support the tracking of risk factors and enhance ongoing monitoring.¹⁴

Public awareness efforts could focus on the idea of ‘adding years of healthy life,’ rather than ‘preventing disease,’ as this positive approach may connect better with people in midlife. The study also highlights the importance of international cooperation, as India’s diverse population offers valuable insights into how risk factors behave across various social and biological contexts. Involvement in groups such as the GCVRC strengthens both global and national understanding. As healthcare access and living conditions evolve, updating lifetime risk estimates to reflect local realities will become increasingly crucial. Future work should prioritise developing region-specific lifetime risk charts and evaluating the cost-effectiveness of interventions introduced during midlife.

Ultimately, this comprehensive international analysis provides compelling evidence that addressing modifiable cardiovascular risk factors can substantially enhance both overall lifespan and the number of years lived in good health. For India and other low and middle-income countries, focusing on prevention during midlife is one of the most effective ways to improve the health of entire populations. The message is straightforward and deeply meaningful: it is never too late to care for your heart. Even beyond the age of 50, controlling blood pressure, managing diabetes, avoiding tobacco, maintaining a healthy weight, and staying physically active can add many healthy and productive years to life.