It depends on what you are interested in. For example in Sweden interesting project H70
Description:
H70 is one of the longitudinal population studies from Gothenburg where representative study samples of older people have been followed over a long period of time (metadata related to the H85, 95+ and Prospective Population Study of Women studies can be found under the Related studies tab). H70 is a population-based study of normative aging in 70 year old populations which focuses on both medical and cognitive measures. H70 started in 1971 with the recruitment of 973 70-year-olds born in 1901-02 and participants have been intermittently followed for up to 30 years. Additional birth cohorts of 70-year-olds as well as 75-year-olds have also been studied and all cohorts have been followed to some extent longitudinally. The H70 study is coordinated by several research groups, primarily Geriatrics, Primary Health Care, Psychiatry, and Epidemiology. The examination procedures at each study have been retained as identical as possible to provide results that can be compared over time. The study comprises a psychiatric interview, physical examination, a close informant interview, blood samples with ext
You could look into the publications of Prof. Hans-Werner Wahl of Heidelberg University. The area your are looking for matches his expertise. Kind regards.
Yes! That's one of his core areas! And Mathias Alemand (University of Zurich) together with Patrick Hill (Washington University in St. Louis, USA) are co-editing a book which will appear towards summer this year entitled "Personality and Healthy Aging".