Centenarian parents, healthier children? What family reveals about how we age

On 1 November, many of us stand in front of a grave. Parents, grandparents, an aunt you loved as a child. And then something happens that hardly anyone talks about. You read the years on the stone and do the maths. 71. 94. 68. And somewhere in the back of your mind, the question runs along: And me?

A research team from New York and Boston set out to answer exactly this question. The answer is surprisingly clear. And for most of us, it is good news, even if it does not look that way at first glance.

What the study examined

The researchers around Eric Reed and Sofiya Milman at the Albert Einstein College of Medicine combined data from three large, independent long-term studies: the LonGenity study in New York, the New England Centenarian Study in Boston and the UK Biobank in Great Britain. The paper was published at the end of August 2026 in the journal JAMA Network Open.

They compared 2,319 people who had at least one parent who reached 100 years or older with 2,703 comparison individuals. Their parents had reached at most 85, or they were the spouses of the centenarians' children, meaning people with a similar everyday life but a different family of origin.

What they found

The children of centenarians did significantly better. At every age examined, their mortality risk was 42 percent lower than in the comparison group. Cardiovascular diseases occurred 33 percent less often, high blood pressure 32 percent less often. And when these events did occur, they came later: high blood pressure about five years later on average, death about three years later.

Important for context: these are relative differences between two groups, not a personal prognosis. Nobody is automatically given three extra years for having a centenarian father. This is an observational study. It shows an association, not proof of what exactly causes it.

It is interesting where the advantage ends. Family history did not protect against cancer; the children of centenarians fell ill just as often. For stroke the picture was mixed, with only two of the three studies showing a lower risk.

Genes or habits?

This is the point that makes the study special. One might assume that children of long-lived parents simply live healthier lives. Less smoking, more running, better eating, because that is what they learned. The researchers calculated exactly that out: smoking, alcohol, exercise, diet, education and social status. The advantage largely remained.

This suggests that something biological is genuinely being passed on here. What mechanisms those are, nobody knows yet. The study was not designed to clarify that.

And yet the researchers themselves state very clearly that this is no free pass. Healthy behaviour remains important for everyone, emphasises study leader Eric Reed. Some people from long-lived families apparently have biological advantages that help them stay healthy longer despite unfavourable influences. Despite. Not instead of.

What this means for your everyday life

Here the story turns. The study is actually bad news for excuses, in both directions.

Anyone from a long-lived family cannot sit back. The protection does not cover everything, cancer included, and prevention remains prevention.

Anyone without centenarians in the family tree, on the other hand, has no reason for fatalism. Most of us do not have them. And for exactly this majority, the things you have in your own hands count: exercise, blood pressure, sleep, nutrition, regular check-ups.

One step costs nothing at all: writing down your own family history once. Who reached what age? What did parents and grandparents fall ill with, and at what age? Were there heart attacks, strokes, diabetes, cancer? This list is one of the most valuable pieces of information you can take to your next conversation with your GP. It does not replace an examination. But it makes every examination smarter.

Your family is a clue. Not a verdict.

Trying it out instead of just thinking about it

That is exactly the idea behind longevity.days. On 30 and 31 January 2027, people who want to know more about their health, without having to study medicine first, will come together in Fürstenfeldbruck near Munich. You can try out diagnostics there, talk to experts about your values and find out which checks make sense for you. Some check-ups are already included in the ticket, such as bone density measurement.

Our tip: bring your family list. It is the best conversation starter at any diagnostics stand. And take home a hack that fits your starting point, no matter how old your grandparents got.

The Very Early Bird day ticket is available until 30 November 2026 for 24.90 euros at www.longevitydays.de.

Sources

• Reed E, et al. Association of Parental Exceptional Longevity with Onset of Morbidity and Mortality Across Cohorts. JAMA Network Open, 2026. DOI: 10.1001/jamanetworkopen.2026.30964. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2853297
• Montefiore Einstein, press release of 26 August 2026: Children of Centenarians Often Live Longer, Develop Some Age-Related Diseases Later. https://montefioreeinstein.org/news/2026/08/26/children-centenarians-often-live-longer-develop-some-age-related-diseases-later

Claim rating: 🟡

A large analysis of three independent long-term studies with more than 5,000 participants, adjusted for lifestyle factors such as smoking, exercise and education. It remains an observational study, however: it shows an association, not causal proof, and provides no personal prognosis. The article therefore treats it as a clue, not proof, and makes no promise of a health benefit.

Note: This article is for general information only and does not replace medical advice.