The Value of Positive Emotions
The emerging science of positive psychology is coming to understand why it’s good to feel good (American Scientist, July-August 2003)
by Barbara L. Fredrickson (1964-)
This is an article about some biological (mis-called Physical), social, and evolutionary benefits from positive emotions.
I found her lists of negative and positive emotions interesting: anger, anxiety (fear), sadness; joy, contentment, gratitude, love. These aren’t described in the article. However, she mentions that the negative emotions have more distinctive effects on the body than the positive emotions, which has made them easier to study.