Couples with equal levels of academic achievement less likely to split than if husbands have more, study finds.
Expert offers tips for spotting chlorine poisoning, bacterial infection, secondary drowning in kids.
Seniors scored worse on tests than young adults, study says.
Researchers monitored stool samples of two people for a year.
By third trimester, unborn babies respond to rhymes recited by their mothers, research shows.
But most men regain their fertility within two years of final treatment, researchers add.
American Red Cross, other groups also urge easing restrictions due to better blood screening.