A reminder:
Jeffrey Froh, a professor of psychology at Hofstra University, did a study in which he asked a group of middle-schoolers to keep “gratitude journals” for two weeks. The kids wrote down a few things they were grateful for every day. A second group of kids wrote down the day’s petty annoyances, and a third group did neither. The students who were made to think about what they had to be grateful for experienced a surge in optimism and a decrease in negative feelings.