Children of Centenarians Have 42% Lower Risk of Death

A JAMA Network Open study finds adults with a parent who lived to 100 face sharply lower risks of death, heart disease, and hypertension.

A study published in JAMA Network Open found that adults with at least one centenarian parent had a 42% lower risk of death at any given age than people whose parents lived to 85 or younger. According to SciTechDaily, their risk of cardiovascular disease was 33% lower and their risk of hypertension was 32% lower. Timing mattered as much as risk: the offspring died roughly three years later on average and developed high blood pressure about five years later. Because hypertension drives heart, blood vessel, kidney, and brain disease, delaying it could carry wide health implications, suggesting exceptional longevity involves an extended stretch of healthier aging rather than mere survival.

The surprise is that lifestyle did not account for the protection. SciTechDaily reports the benefits remained largely consistent after researchers adjusted for smoking, alcohol, exercise, diet, education, and socioeconomic status. The design sharpened that conclusion: controls included spouses of centenarians' offspring, who share households and habits but not inherited biology. Protection also had limits. Stroke risk fell only in two of the three studies, and cancer risk was no lower among centenarians' children, a result consistent with earlier research. Lead author Eric Reed of Albert Einstein College of Medicine said the consistency across very different studies reinforces that exceptional longevity runs in families, even though healthy behaviors remain important for everyone.

Researchers at Albert Einstein College of Medicine, Boston University, and Tufts Medical Center combined the Einstein-led LonGenity study, the New England Centenarian Study, and the UK Biobank, covering 2,319 adults with a centenarian parent and 2,703 controls. According to SciTechDaily, the data spanned 16 years in LonGenity and the UK Biobank and 29 years in the New England Centenarian Study, with each group analyzed using the same approach to test whether associations held across different populations. Senior author Sofiya Milman, M.D., said centenarians offer crucial insights into aging well and that the team wanted to know whether good health is passed down or explained by habits alone.

The study was not designed to identify the specific inherited traits involved, but Milman said it provides a strong rationale for studying centenarian families to uncover biological factors that could be turned into treatments mimicking natural longevity mechanisms for people who did not inherit them. Environment still shapes heart health: Ynetnews reports that a European Heart Journal study of UK Biobank participants found even dim nighttime light — above roughly 3 lux, the level that begins suppressing melatonin — was linked to cardiac remodeling on MRI, including greater left ventricular muscle mass and reduced contraction, an effect magnitude comparable to air pollution exposure. Genetic advantage and a dark bedroom may both count.