Quality of life, whatever your age (reasonably optimistic, realistic, doing your part, feeling contented, joy and laughter), is very important. That said...
http://www.ted.com/talks/dan_buettner_how_to_live_to_be_100. html
To find the path to long life and health, Dan Buettner and team study the world's "Blue Zones," communities whose elders live with vim and vigor to record-setting age. At TEDxTC, he shares the 9 common diet and lifestyle habits that keep them spry past age 100.
About Dan Buettner
National Geographic writer and explorer Dan Buettner studies the world's longest-lived peoples, distilling their secrets into a single plan for health and long life. Full bio and more links
