Journal ArticleNature communications·May 2026
Long-Lived Genes May Give Grandkids a Healthier Start in Life
Key Insight
This study suggests family longevity history may offer health advantages that start in infancy, not just old age.
Grandchildren of Danish families known for exceptional longevity had about half the risk of dying in infancy compared to the general population. They also showed better health markers at birth. But by the great-grandchildren generation, this advantage faded considerably, hinting that the protective effect dilutes over time.
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