It’s long been said that writing an angry letter – but not mailing it —– is an effective way of venting without backlash. UC Riverside researchers say the converse — penning letters-never-sent expressing gratitude — carries a benefit, as well. There is an entire area of study in psychology devoted to gratitude, including its benefitsIt’s long been said that writing an angry letter – but not mailing it —– is an effective way of venting without backlash. UC Riverside researchers say the converse — penning letters-never-sent expressing gratitude — carries a benefit, as well. There is an entire area of study in psychology devoted to gratitude, including its benefits » The FINANCIAL Education