Emmons, Henry Staying sharp : 9 keys for a youthful brain through modern science and ageless wisdom / Henry Emmons and David Alter - New York Touchstone 2015 - 280 p. ISBN: 9781476758947 Subjects--Topical Terms: Brain--Care and hygieneMind and bodyCognitive neuroscienceHolistic medicine Dewey Class. No.: 612.82 EMM-H