In the second study, participants recorded their sleep from the previous night for two weeks and their feelings of gratitude. The researchers found a decline in gratitude associated with poor sleep, and those participants reported feeling more selfish those days.
The final study looked at heterosexual couples and found that people tend to feel less grateful toward their romantic partners if either they or their partners generally sleep poorly. "In line with this finding, people reported feeling less appreciated by their partners if they or their partner tends to sleep poorly, suggesting that the lack of gratitude is transmitted to the partner," Gordon says.
"Poor sleep is not just experienced in isolation," Gordon says. "Instead, it influences our interactions with others, such as our ability to be grateful, a vital social emotion."
Giving away money to feel wealthy
Just as expressing gratitude confers benefits, so too does giving to others. New research shows that people all around the world from Canada to Uganda, from South Africa to India derive more happiness from spending money on others than they do on themselves.
"For the first time, we show that giving away money or spending it on others confers the ironic psychological benefit of increasing the giver's sense of wealth," says Michael Norton of Harvard Business School and co-author with Elizabeth Dunn of the University of British Columbia of the upcoming book Happy Money: The Science of Smarter Spending. In a suite of new, not-yet published, studies, Norton and colleagues showed that charitable giving makes people feel wealthier.
This research follows on other recent work published in Psychological Science by Norton and colleagues that shows that giving time to others from helping with homework to shoveling a neighbors' driveway
|Contact: Lisa M.P. Munoz|
Society for Personality and Social Psychology