Why women should marry younger men: older women make smarter babies, older men make dull kids. Older men might make kids with autism, schizophrenia, epilepsy, bipolar, cleft palate, cancers, heart defects. Older women might make kids with Down syndrome only. Annotated link http://www.diigo.com/bookmark/http%3A%2F%2Fmedicine.plosjournals.org%2Fperlserv%2F%3Frequest%3Dget-document%26doi%3D10.1371%2Fjournal.pmed.1000042