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New research suggests that the number of children a woman could affect the rate at which her body ages, with more children leading to a slower rate of biological aging. 新的一项研究表明，女性生育孩子的数量可能会影响身体衰老的速度，孩子越多，生理衰老的速度将会越慢。 A team of researchers from Simon Fraser University, Canada, looked at 75 indigenous Guatemalan women from two neighboring rural communities and collected data on the number of children the women had given birth to. 加拿大西蒙弗雷泽大学的一组研究人员,观察了75名来自两个邻近农村社区的土著危地马拉女性，并收集了这些女性生育孩子的数据。 To find a link between number of children and the rate of biological aging, the team also looked at the length of each woman's telomeres, the protective tips found at the end of each DNA strand that indicate how cells are aging. The longer the cells, the better it is for aging and longevity. 为了找到生育孩子的数量与生理衰老速度的关系，研究小组同样研究了每位女性染色体端粒的长度，每个DNA链末端发现的用来显示细胞如何衰老的保护提示。研究发现，细胞越长，越有助于延年益寿。 | 
