AdvertisementThinking Of Retiring? Consider Your Health05:26Download AudioResumeMarch 25, 2014Ina JaffefacebookEmailManuel "Manny" Aguirre, 80, has been mixing cocktails at Musso and Frank Grill in Los Angeles for more than two decades. He works part time and could retire — but he doesn't want to. (Courtesy of Musso and Frank Grill)