Women who have children naturally in their 40’s and 50’s live longer,report journal of gerontology. The benefits of longevity are also shared by their blood brothers wives did not have the advantage, suggesting that the same genes that promote female fertility may also prolong life, and and may be more important than social and environmental factors.
The study looked at the records of 11,604 Utah men born between 1800 and 1869 and 6206 Quebec men who lived between 1670 and 1750 with atleast one sister who lived up to age 50 or beyond.
