We want to determine the mental function of healthy people as they go through their later years. Some studies have suggested that we all would lose cognitive function if we lived long enough. But other studies, including those at Washington University, suggest that Alzheimer's disease is not a normal feature of healthy aging. The study is making yearly tests of cognitive function in mentally healthy people over 85. It also examines the effect of physical frailty on test performance.
All tests relating to the study are free.
Participants who are unable to travel to the medical center can be tested where they live.