Functions of Emotions:
Send social signals - Facial expressions are often more accurate than words.
Adaptation Level Theory indicates that what we have (our present state of being) we adapt to & therefore what we have does not influences long-term happiness.
There are genetic (inherited) differences in happiness. People have different happiness set points.
Showing emotions are governed by cultural display rules.
Lie Detector results are not allowed in courts nor are the results reliable.
Robert C. Gates