AdvertisementAfter Alzheimer's Diagnosis, 'The Stripping Away Of My Identity'05:19Download AudioResumeJanuary 31, 2015Rebecca HersherfacebookEmailGreg O'Brien (left), with Colleen, Mary Catherine, Conor, and Brendan O'Brien, has been grappling with Alzheimer's disease for the last five years. (Courtesy Greg O'Brien)