Does sharing good news affect our mood?
When good things happen to you, do you immediately call a friend or run over to your parents to share the joy? Well, if it isn’t your style, you might reconsider. A study shows that those who sought out others when good things happened to them were consistently happier than those who did not share their good news. Additionally, this "capitalizing" effect held irrespective of the events themselves, meaning that if two people both had positive things happen to them, the happier person would be the one who shared the good news. The study ruled out alternative explanations for these findings. For example, personality did not play a role, given that the results were due to high levels of extraversion in the study's participants.
Peoples' responses to an individuals good news are also important. Only when others reacted with genuine enthusiasm (as opposed to indifference or feigned happiness) did sharing make people happier. So happiness is not just the result of sharing joy, rather, it is also a result of sharing good news with the right people. (Extract from Organizational Behavior – Stephen P. Robbins and Timothy A. Judge)