Positive psychology focuses on positive experience that is also named positive emotional experience.

Influence of positive emotion on users' adoption intention on information technology: an experimental study with RA

The positive emotion is a pleasure feeling that comes from the individual’s satisfactions by stimuli of inside or outside the body, and the life events.

Nowadays,in the research of emotion,positive emotion has become one core.

Some studies show that positive emotions promote cognitive flexibility.

The Broaden-and-Build Theory of Positive Emotions by Fredrickson posits that positive emotions will be able to broaden one s momentary thought-action repertoires, construct and strengthen personal resources, which are caused by the interactions of positive meanings and outcomes from positive emotions and acts in the context of positive tendency.

After a review of related literature, this paper proposes, based on the Moral Affect Theory and the Broaden-and-build Theory, that gratitude is different from both reciprocity norms and common positive emotions in that it can promote helping behavior.

They should do research to find effective ways to get rid of negative nds and maintain positive moods to promote the psychological and phyaiobocal health.

There were none significant negative trend of correlation between positive mood and negative mood in structural model;and in measurement model,when tension was fixed,fatigue,depression,anger and fluster significantly contributed to negative mood,and while vigor was fixed,self-esteem had no contribution on positive mood.