Linked Lives approached the human mind and social development by studying dyads of intimately related persons. The project was interdisciplinary and international, involving social scientists, demographers, psychologists, epidemiologists and biologists from several countries.
We investigated the five core relationship dyads: spouses; parents and children; siblings; grandparents and grandchildren, and relationships among friends. By testing hypotheses from social sciences and evolutionary research, we promoted the ongoing integration of life sciences and social sciences.
Key findings relate to the effect of birth intervals on family wellbeing, friendship dynamics in adulthood, relationships between full and half siblings, and the importance of kin for the timing of fertility.
Linked Lives created three new data sets, FINNFAMILY, FINNUNION, and the Fraternity Friendship Study. Research results produced over 50 scientific publications and gained high media visibility.