H Heckendorf | Protect Labhttps://www.protectlab.org/author/h-heckendorf/H HeckendorfWowchemy (https://wowchemy.com)de© Protect Lab 2024Tue, 01 Jan 2019 00:00:00 +0000https://www.protectlab.org/media/logo.svgH Heckendorfhttps://www.protectlab.org/author/h-heckendorf/Efficacy of an internet and app-based gratitude intervention in reducing repetitive negative thinking and mechanisms of change in the interventions effect on anxiety and https://www.protectlab.org/publication/efficacy-of-an-internet-and-app-based-gratitude-intervention-in-reducing-repetitive-negative-thinking-and-mechanisms-of-change-in-the-intervention-s-effect-on-anxiety-and-/Tue, 01 Jan 2019 00:00:00 +0000https://www.protectlab.org/publication/efficacy-of-an-internet-and-app-based-gratitude-intervention-in-reducing-repetitive-negative-thinking-and-mechanisms-of-change-in-the-intervention-s-effect-on-anxiety-and-/