Researchers tested a digital version of a positive psychology intervention called "Three Good Things" (3GT) among health care workers to assess whether gratitude practice improved well-being. Two hundred and twenty-three participants-;all of whom were based at a single, large academic medicine department-;were randomized to an immediate intervention or delayed intervention control group. During the study, participants received text messages three times per week, prompting them to document three things for which they were grateful.
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