Women who give birth to natural twins are probably more reproductively fit to do so, according Compared with other mothers, women who deliver twins live longer, have more children than expected, bear babies at shorter intervals over a longer time, and are older at their last birth, according to a University of Utah study.
"Having twins will not make you stronger or healthier, but stronger, healthier women are more likely to have twins naturally," says Shannen Robson, the study's first author and a recent Ph.D. graduate in anthropology at the University of Utah.
"Women having children are fundamentally young and healthy," he adds. "So the risk of dying in childbirth is quite low. The women who have twins have a somewhat elevated risk of mortality over those [child-bearing] years, but the vast majority of those women reach age 50, and we're able to observe that they have healthier lives."
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