Wolfgang Glatzer Johann Wolfgang Goethe-Universitiit Franlifurt am Main, Germany ABSTRACT Challenges for the quality of life in the contemporary world were the focus of the Fifth International Quality of Life-Conference in Frankfurt am Main in the year 2003, hosted and organized by the Interna- tional Society for Quality of Life Studies. The first part of this introductory article is concerned with a general assessment of contemporary quality of life research. At present, the concept of quality of life is a kind of umbrella which keeps together a reasonable number of international social...