Recording a friend's generosity or the help of someone reliable gives a particular experience a place in the account of a day. In three studies published in 2003, Robert Emmons and Michael McCullough investigated whether regularly directing attention toward things people felt grateful for changed how they experienced their lives.
The researchers tested a modest activity. Participants listed things for which they were thankful, then reported aspects of their moods, health, and daily experience. Other participants completed comparable records with different instructions. This allowed the authors to move beyond asking whether grateful people tend to be happier and examine what happened when people were assigned to a grateful focus.
Their results were varied enough to be useful. Some benefits appeared in overall life appraisals, others in positive emotions or social experience. Several physical outcomes did not change. The paper offers a more specific understanding of gratitude practice than a general promise that appreciation improves everything.
Recognizing what has been received
The authors describe gratitude as involving recognition of something beneficial and, often, recognition that its source lies beyond oneself. Someone has offered help, an opportunity has become available, or an aspect of life is appreciated. The things participants listed could be large or small, personal or spiritual.
This gives the activity a particular focus. It asks a person to identify something they value in their actual experience. When that benefit comes from someone else, it also draws attention to what that person has contributed. The research did not require participants to send a thank-you message. Its starting point was recognition.
Looking back over a week
In the first study, university students completed weekly records across an academic term. One group listed things they were grateful for. Another recorded hassles, while a third listed events that had affected them without being directed toward either appreciation or complaints.
Students assigned to the gratitude condition evaluated their lives more favorably and felt more optimistic about the following week than students in either comparison group. They also reported fewer physical symptoms. Compared with the hassles group, they reported spending more time exercising, although the exercise difference from the ordinary-events group was not statistically significant.
Their overall positive and negative emotions did not differ significantly across the three groups. This separates two experiences that can otherwise be folded together. A person can evaluate their life more favorably without showing a corresponding difference in the full set of emotions reported during that period.
The researchers also asked about reactions to receiving support. Across the groups, feeling grateful and appreciative toward someone who had helped was associated with greater happiness and more favorable life appraisals. That was an association within the study, rather than proof that receiving help or feeling grateful caused those particular differences.
Daily attention and offering support
The second study used daily records over roughly two weeks. It also changed one comparison. Alongside the gratitude and hassles groups, a third group considered ways they were better off than other people.
Participants recording gratitude reported more positive emotions than those recording hassles. The gratitude group did not differ significantly from the social-comparison group on this outcome. Negative emotions did not differ significantly across the groups. The finding supports a benefit relative to dwelling on irritations without establishing that gratitude was superior to every other positive focus tested.
A social result added another dimension. Participants in the gratitude group more often reported offering emotional support to someone else than participants in either comparison group. The evidence for helping someone with a practical or personal problem was weaker. That difference was only marginal compared with the hassles group and was absent compared with the social-comparison group.
Offering emotional support is a more concrete finding than a general claim that people became kinder. It suggests that attention to what had been received was accompanied by a difference in one reported way of responding to others. The study did not establish the quality of that support or how recipients experienced it.
The physical findings from the weekly study did not repeat. The groups did not differ significantly in physical complaints, exercise, sleep, or the other health behaviors assessed. The authors considered whether the shorter period contributed to this result, but that explanation remained a possibility rather than a tested conclusion.
Appreciation while living with a chronic condition
The third study involved adults with neuromuscular diseases, extending the work beyond university students. For three weeks, participants either added gratitude listings to their daily records or completed the records without that addition.
Those assigned to gratitude reported more positive emotions, fewer negative emotions, more favorable evaluations of their lives, and greater optimism. They also reported feeling more connected with other people. This last finding matters because connection was directly assessed, rather than inferred from a general increase in happiness.
They reported longer sleep and feeling more refreshed on waking. They did not report significant improvements in pain, interference from pain, exercise, or their ability to carry out daily activities. An improvement in emotional experience could therefore coexist with continuing physical difficulties.
The researchers also obtained reports from spouses or other significant people. These observers rated the gratitude participants as more satisfied with life than the comparison participants. The difference in observers' ratings of positive emotion approached, but did not reach, conventional statistical significance, and their ratings of negative emotion did not differ. The outside observations provided some support for the self-reports without confirming every outcome.
What the pattern makes possible to understand
Across the studies, the most consistent contribution was to positive emotional experience, particularly in the daily versions of the activity. The outcomes also depended on the population, comparison, and period studied. The paper does not establish an ideal frequency or show how long the changes continued after the studies ended.
The authors explored whether increased gratitude helped explain the positive-emotion findings. Their statistical analyses were consistent with that account. The analyses did not separately manipulate gratitude and every other possible influence, so they cannot establish a complete causal mechanism.
For understanding relationships, the paper's most useful details are the reported emotional support in the second study and the felt connection in the third. These are different contributions. One concerns what participants said they offered to others. The other concerns how connected they felt. Neither needs to stand in for the whole of a relationship.
The activity itself remained specific throughout. Participants identified things they appreciated in lives that also contained frustrations, responsibilities, and, for the third group, chronic disease. The gratitude records gave those valued experiences regular attention while the other circumstances remained part of the same life.
Sources
Emmons, R. A., & McCullough, M. E. (2003). Counting blessings versus burdens: An experimental investigation of gratitude and subjective well-being in daily life. Journal of Personality and Social Psychology, 84(2), 377–389. Read the full paper.
how connection develops