I wrote a letter this week to the person who taught me beekeeping. Not a text, not a quick thank you after a good hive inspection. An actual letter, specific, three pages, meant to be read out loud to his face. I didn’t know until afterward that I’d basically just run a real, published psychology experiment on someone I care about.
It’s called the gratitude visit, and it comes from Martin Seligman, a psychologist at the University of Pennsylvania and one of the founders of positive psychology. His instructions are almost exactly what I ended up doing without knowing they existed, write a specific letter of gratitude to someone who changed your life and never got properly thanked, then deliver it in person, then read it out loud to them.
In a 2005 study Seligman ran with 411 participants, the gratitude visit produced a bigger immediate boost in happiness than any other exercise his team tested that week, bigger than journaling, bigger than simply reflecting on early memories. People who did it reported a noticeable jump in how happy they felt, right after doing it.
I want to be honest about the part that isn’t as inspiring, because I looked it up afterward and it mattered to me. In a related large scale gratitude study, the boost from a single gratitude visit faded over time. Researchers measured happiness immediately after, then again after a month, then after six months. By six months, most of the initial jump had disappeared, and participants had drifted back toward their starting point. Psychologists sometimes call this the hedonic treadmill, the tendency for people to adapt back to a baseline no matter how good or bad something felt at first.
That fade doesn’t erase what happened when I actually read the letter, though. My voice shook. I had to stop twice. When I finished, there was a long quiet second before he said thank you, and his voice wasn’t steady either. He told me he’d been wondering lately whether any of what he’d taught me had actually mattered to me. That timing wasn’t something a research paper could have predicted. It just happened to land exactly when it needed to.
The research suggests the good feeling from a single letter mostly fades within six months. What I don’t think fades, or at least what the study wasn’t really designed to measure, is what changes in a relationship once you’ve actually said something out loud that you’d only ever thought privately. He knows things now that he didn’t know a week ago. That’s not the kind of effect that shows up on a happiness scale, but I don’t think it needs to reset in six months to have been worth doing.
Seligman built a research career partly on a very simple idea, most people carry gratitude they never say out loud. I’m not sure the science needs to prove much more than that to be worth trying. Say the thing. Even if the mood boost fades, the person still heard it.
Sources. Seligman, M., University of Pennsylvania (2005 gratitude visit study).