Trying to get pregnant? Make sure you know the bottom line on baby-making—what you don't understand can affect your bub-to-be's health.
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If your hubby packs on pounds during your pregnancy, it could be nature's way of preparing him for fatherhood. Researchers at the University of Wisconsin, Madison, studied monkeys and found that when their mates were pregnant, the male monkeys gained weight, perhaps to meet the physical challenges of fatherhood. Weight gain in men is "probably real, with a possible evolutionary purpose behind it," says study co-author Shelley Prudom. Who knew changing diapers was so tough?