Harvard Study: Good Deeds Improve Willpower
The Harvard Crimson:
People gain more willpower to do good after performing a good deed, according to a recent Harvard study.
Psychology graduate student Kurt J. Gray found that people who chose to donate a dollar rather than keep it had greater physical endurance.
"To be good and feel the positive effects, you just have to do some good," he said. "You don't have to donate a whole kidney. You can just donate a dollar."