Our brains are getting older, but there's still much to be optimistic about. Neuroscientists Susan Greenfield and Gary Small discuss the aging brain with journalist Sam Kean.

Gray Matter: The Brain after 50

Aspen Ideas to Go is a show about big ideas that will open your mind. Featuring compelling conversations with the world’s top thinkers and doers from a diverse range of disciplines, Aspen Ideas to Go gives you front-row access to the Aspen Ideas Festival and other events presented by the Aspen Institute.

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Gray Matter: The Brain after 50

Gray Matter: The Brain after 50