New research from Simon Fraser University, Canada suggests that the number of children a woman gives birth to could affect the rate at which her body ages, with more children leading to a slower rate of biological aging. A team of researchers 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. http://www.ctvnews.ca/health/having-more-children-could-lead-to-slower-rate-of-aging-study-1.2730585 I always thought it's the opposite.