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Social Environment Twin Study

The University of Washington Twin Registry is inviting eligible twin pairs to participate in a study exploring the role of the social environment in supporting mental health. This study seeks to determine whether social capital (i.e., social trust, sense of belonging, and neighborhood satisfaction) has an effect on one’s mental …

Where are our members located?

Our members live all over the USA and around the world! Most of our members live in Washington State, but many also live in Oregon, California, Idaho, and along the East Cost. Most of our Washington State members live in Seattle and the greater Puget Sound region. We have twins living …