And the benefit for women might be even greater. It turns out grandparents should say “yes” the next time their kids ask them to babysit their grandchildren. A recent study published in the journal Psychology and Aging found that grandparents who provided child care for their grandchildren had better cognition than those who did not take part in caregiving. Specifically, grandparents who took part in any number of caregiving activities (such as help with homework, care when the child was sick,