Men may have a better sense of navigational direction (helping them get to their destination faster)—but women have a better local memory (making them better at finding local objects). In simple terms, say researchers: Men are better at finding the house and women are better at finding things in the house. Researchers at the Norwegian University of Science and Technology believe that sex hormones influence gender brain differences, and are using studies like this to help  understand why twice as many women as men are diagnosed with Alzheimer’s disease.