This chapter deals with the awareness of change in the course of very old age. The main research questions are: How do elders perceive the dynamic of change in their life? What is its intensity? Which are the main domains of life impinged by changes they consider as important? Are self-reported changes related to "objective" transformations in the fields of health, well-being and activity? At the end of the first five-year term, 80% of the survivors mentioned important changes in their life, the mean number of changes being three. After 10 years, the proportion rose to 88%, with six changes as a mean. The chief domains of change were health and family (83% of the changes). When another person was involved in the change, he/she was almost always a close relative (94%) and the major event was bereavement (47%). Self-reported bereavements and health problems were associated with a significant decline in the elders' well-being; those reporting a deterioration in health did in fact undergo a serious health decline, both physical and functional, and a reduction of activities.