# Mega-study analyzes the impact of gratitude interventions Results from a study conducted in 34 countries with over 10,000 participants have been published. - **Source:** [Phys.org - latest science and technology news stories](https://brifing.si/source/8b0f98da-d179-4c93-871f-7ac460bf9c61) - **Published:** 2026-08-08 - **Topic:** [Career Growth](https://brifing.si/c/growth) - **Original article:** - **On Brifing:** https://brifing.si/s/64a47e91-cf0b-41fe-94d6-90b9341ff7ff ## Impact of gratitude interventions Gratitude interventions are designed to improve individuals' mood, strengthen bonds between people, and promote social reciprocity. The effectiveness of these interventions may vary across cultures and countries. A mega-study conducted in 34 countries aims to analyze the impact of these interventions. ## Scope of the study The research was conducted in 34 countries with over 10,000 participants. This extensive study is seen as a significant step in understanding how gratitude interventions work in different cultures. In Brazil, 598 volunteers responded to intervention prompts via an online tool. ## Brazil's contribution The project in Brazil was carried out with the help of researchers and 598 volunteers. Participants responded to gratitude interventions through an online tool. This process provided important data for measuring the effectiveness of the interventions. ## Study methodology Researchers applied gratitude interventions to participants via an online tool. These interventions were designed to improve participants' mood and strengthen social bonds. The study analyzed how these interventions worked in different cultures. ## Publication of results The study's results were published in PNAS. This publication provides important insights into the effectiveness of gratitude interventions. The research offers a comprehensive analysis of how these interventions work in different cultures. ## Cultural differences The research revealed that the effectiveness of gratitude interventions varies across cultures. In some cultures, these interventions significantly improved mood, while in others, the effect was more limited. These findings highlight the importance of cultural factors. ## Strengthening social bonds Gratitude interventions were effective in strengthening social bonds between people. These interventions helped participants develop more positive attitudes towards each other. The study analyzed how this effect varied across different cultures. ## Importance of the study This mega-study provides a comprehensive understanding of the effectiveness of gratitude interventions. Findings showing how these interventions work in different cultures form an important foundation for future research. The study offers valuable insights into the effects on mental health and social bonds. ## Sources covering this story - https://phys.org/news/2026-08-mega-impact-gratitude-interventions.html — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._