Research Reveals Five Science-Based Reasons to Express Gratitude

Research conducted by Christopher Oveis, an associate professor at the University of California San Diego, highlights the numerous benefits of expressing gratitude. The findings suggest that saying “thank you” can significantly enhance relationships, reduce stress, and even improve physical performance under pressure. According to Oveis, gratitude is powerful because it positively impacts everyone involved—both the giver and the receiver, as well as those who witness the interaction.

Gratitude prepares your body for peak performance. In a study designed around the context of high-pressure situations, similar to the show “Shark Tank,” Oveis and his colleagues paired students into teams. They tasked these teams with pitching a new bicycle design to a panel of judges, a scenario intentionally created to induce stress. Before the challenge, some teammates paused to express gratitude toward one another. The results were notable: those who exchanged thanks exhibited healthier cardiovascular responses, demonstrating more efficient heart function and improved blood flow. Oveis noted, “People who feel appreciated are more prepared to perform well. Their bodies respond better to stress.”

Building stronger relationships through gratitude is another key finding. Gratitude is not limited to special occasions; it plays a vital role in everyday interactions, enhancing connections among coworkers, classmates, and family members. Oveis emphasized that gratitude communicates recognition and appreciation, saying, “It tells people you see their effort, that you’re responsive to one another. That builds trust, closeness, and cooperation.” His research indicates that even brief acknowledgments between near-strangers can foster a sense of connection and improve collaborative performance over time.

Furthermore, teams that practice gratitude tend to achieve better results. In Oveis’s study, teammates who expressed thanks before a challenging task performed better and felt more equipped to tackle their responsibilities. Gratitude fosters a sense of support, reinforcing the notion that “we’ve got each other’s backs.” Oveis remarked on the impact of such support, particularly in high-stakes situations: “When you know that your team has your back, it has a powerful impact on how you perform.”

The benefits of gratitude extend beyond those who express it; even witnesses to acts of gratitude experience positive effects. Oveis’s related research found that when individuals observe someone expressing gratitude, they are more likely to feel connected and cooperative. This ripple effect is especially pronounced among leaders, who can benefit from expressing gratitude in front of their teams. “When you feel grateful, don’t be afraid to express it,” Oveis advised, emphasizing the broader impact on employee morale and performance.

Lastly, the effectiveness of gratitude hinges on its focus. Research by Oveis’s collaborator, Sara Algoe, from the University of North Carolina at Chapel Hill, reveals that the most effective expressions of gratitude center on the recipient. Phrases that highlight the kindness or thoughtfulness of the giver, such as “You really went out of your way to help me,” strengthen bonds more than those that focus solely on personal need. Oveis pointed out, “If you focus only on your own need—like, ‘I really needed that’—it doesn’t hit as deeply.”

Oveis encourages individuals to practice genuine gratitude, stating, “It’s not about going around saying thank you just to check a box. People can tell when it’s not genuine.” He suggests that especially during occasions like Thanksgiving, taking the time to express what one is grateful for can significantly enhance relationships. “You’re sitting at a table with people who matter to you, and letting that gratitude out can make everyone feel more connected.”

In summary, the findings underscore the importance of expressing gratitude authentically. Oveis succinctly advises, “If you feel gratitude, let it out. Don’t hold it in.”