In 2009, we collected blood and saliva samples from our Gen 2 participants as a part of the social stress study. Learn more about our history at https://t.co/Xqv8EZixba. #rainestudy #research #30yearsofchanginglives #history https://t.co/dxn02iHT2w – https://twitter.com/RaineStudy/status/1194512070194159616
