Well-Being and Vitality
University of Arkansas lists ideas concerning "Well-Being in Later Life"
Many people think of later life as a time of increasing complaints and decreasing abilities. It may seem that later life is a time to dread. But there is another side to the story. Some things actually get better in later life. ...

The Institute for the Study of Aging and the International Longevity Center-USA has a good workshop report from 2001 on "Achieving and Maintaining Cognitive Vitality With Aging".