Gratitude
Expressing gratitude has scientifically proven benefits, both for expressor and recipient, and seems like an all-round good thing to do. So why aren’t we doing this more often? Turns out there’s some very good reasons, and those reasons can be overcome. - Research Paper: 'Undervaluing Gratitude: Expressers Misunderstand the Consequences of Showing Appreciation' by Amit Kumar and Nicholas Epley