
Many of the risk factors associated with pregnancy are more harmful when the expectant mother is over 35. According to an extensive, register-based study, the risks associated with overweight, smoking, gestational diabetes and pre-eclampsia are higher in advanced maternal age than in younger expectant mothers. dvanced maternal age refers to women giving birth at the age of over 35.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YnZGm9ljyAU/150211084031.htm