I wonder if more (children=stronger telomeres) points to a causation or is just a correlation between the two? Meaning mothers whom have stronger genetics generally tend to have more children and will also make life choices which would better insure that they are a part of a more nurturing and supporting community......while those predisposed to genetic weaknesses tend to have less children, because at some level their bodies know it cant handle it, and they tend to come from family lines which also have weaker genetics?
I would agree that having children seems natural for women, yet society today seems to not provide the general support for most women to mother children in natural ways, which would fully activate these genetic mechanisms which would ensure that our mothers live to become even stronger, wiser, and more complete grandmothers...
Since the "liberation of women" in modern society, women with multiple children are immediately set at a disadvantage within our society. The extended support of traditional family structures has withered away, and the friendships centered around the mutual caring for each others children, has given way to daycare's and working moms. To bring forth the most optimal human beings, children need to be nursed for at least the first three years and be at their mothers side, and then be gradually separated and allowed to be cared for by trusted members of the wider community.
Many of the most fit and capable women of my generation chose not to have children, because it would ruin their plans and lower their station in life. There is a feeling that having children will cheat a young girl from having a life of her own, and all her friends will be living the good life while she is trapped(chained to the stove bare foot and pregnant). So a trend is set of women who do not have children, or if they do its only one or two, and that may not happen till the thirties, then very few will actually nurse the child very long or practice the kind of bonding which is so beneficial to moth mother and child.
Though there is much more complexity to it this kind of genetic data, it could indicate why so many women whom do not have multiple children, may be more prone to degenerative disease than women whom have many children and are well supported.