“…The study by Lentzner, Pamuk, Rhodenhiser, Rothenberg, and Powell-Griner (1992) examined quality of life in the year before death as a potentially important measure of the success or failure of life expectancy gains. Many studies (Echevarria, Ross, Bezon, & Flow, 1991;Morley, Mooradian, Silver, Heber, & Alfin-Slater, 1988;Nelson & Franzi 1989;Nolan & Blass 1992) report that change in diet and lifestyle may enhance cognitive functioning and hence support successful aging.…”