As in other countries, life expectancy in Germany is rising. The researchers of the Berlin Aging Study II (BASE-II) investigate how these additional years can be lived healthily and actively. The Berlin Aging Study II is an extension and expansion of the longitudinal Berlin Aging Study (BASE). In 1990–1993, this interdisciplinary study initially examined 516 men and women of the western part of Berlin aged between 70 and 100 and has continuously followed them up. The continuation study BASE-II investigates the physical, cognitive, and social conditions that lead to successful aging. 2,200 Berlin residents are being investigated. They form two groups: 1,600 participants belong to the older sample aged between 60 and 80, and 600 participants are between 20 and 35. The group of younger people functions as a reference group for the group of older participants. The first wave of data collection started in 2009 and ended 2015. BASE-II is designed as a longitudinal study to determine individual changes in age: The participants have so far been medically examined twice. Surveys have been conducted up to ten times and psychological tests have been performed up to four times.


The Berlin Aging Study is a multidisciplinary investigation of old people aged 70 to over 100 years who lived in former West Berlin. In the main study (1990–1993), a core sample of 516 individuals was closely examined in 14 sessions covering their mental and physical health, their psychological functioning, and their social and economic situation.

The study was continued as a longitudinal study, and surviving participants have been reexamined seven times.

To the webpage of the previous study BASE
Project Information
Find out more about the Berlin Aging Study II, the research units, publications, and participating researchers below project information.
Continuation of BASE-II
Sex- and gender-sensitive prevention of cardiovascular and metabolic disease in older adults in Germany (Gendage). The aim of the project is to improve sex- and gender-specific prevention of cardiovascular and metabolic disease among older adults. Funding: 2017 - 2021 by BMBF


  • Charité - Universitätsmedizin Berlin
  • Humboldt-Universität zu Berlin
  • Max Planck Institute for Human Development
  • Socio-Economic Panel at the German Institute for Economic Research
  • Universität zu Lübeck
  • Universität Tübingen

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