Video: "Super-Agers" defy time on memory test

Most people have memory problems as they age, but the brains of so-called "super-agers" seem to stay young. Dr. James Galvin, professor of neurology and psychiatry at New York University, talks to the "CBS This Morning" co-hosts about what we may be able to learn from them. (Source: Health News: CBSNews.com)

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