Completed In-Person/At-Home Studies
As results become available, we will post the information here. Thank you to the twins who participated in these studies!
- Heritability of Innate Immune Inflammatory Responses
July 2004 – November 2007 - HSV Pilot
December 2004 – August 2005 - Gut Bacteria in Inflammation and Obesity
June 2006 – February 2007 - An Interdisciplinary Study of Eating Behavior in Twins
May 2007 – May 2010 - Twin Study of Chronic Widespread Pain
March 2007 – June 2010 - Personality, Stress and Cold Sores: A Twin Study
March 2009 – March 2012 - Sleep Duration and Metabolism in Twins
July 2010 – December 2011 - Multilevel Pain Phenotyping
August 2010 – March 2012 - Multidisciplinary Approach to the Study of Chronic Pelvic Pain
June 2011 – June 2014 - Brain Regulation of Appetite in Twins
January 2012 – August 2015 - Physical Activity in Twins
June 2012 – July 2015 - The Genetics and Epigenetics of Healthy Aging in Twins
January 2013 – December 2014 - Mood and Methylation in Twins
August 2014-July 2018 - Asthma and Allergy in Twins
November 2015-January 2016 - Study of Air Pollution in Twins (R21 phase)
February 2016-August 2018 - Heritability of Preferences
2016 - Study of Air Pollution in Twins (R33 phase)
September 2017-August 2021 - Gene Expression and the Microbiome in Twins (GEMsTone)
March 2018-May 2019 - Physical Activity in Twins follow-up study
January 2018-May 2019 - Google Timeline
July 2020-June 2022 - Genetic and environmental influences on the relationships between smoking and cannabis co-use and smoking and alcohol co-use and their association with chronic pain: a twin study
May 2021-August 2021
COVID-19 Survey Studies
One week after the stay-at-home orders were issued in Washington State, we began collecting survey data from our members about their experience with COVID-19. We collected 7 additional follow-up surveys between 2020 and 2022. Publications from this data can be found here.