In the eyes of psychological research Twins represent a special ’experiment of nature‘. With their help differences in the manifestation of psychological and socially relevant characteristics among individuals can be examined: Every human-being is the unique result of the interaction of innate dispositions and environmental influences. The twin design enables an investigation of the impact of genetic and environmental factors in a unique manner.

In the following categories you will find useful information on twins, e.g. how twins develop and the frequency of twin births in Germany. Furthermore, the category twin studies answers the question why twins are so important for our research.

You will be informed about the project TwinLife via our newsletter. A registration specifically for the TwinLife study is not possible at the moment, because the selection of twin families will be carried out by a survey institute.

Information about current studies, interesting facts on the world of twins and news about TwinLife can be downloaded in the category newsletter.