Mona remarks that she is interested in the effects of happiness on physical health and mental well-being. mona's interest reflects the psychology approach.

Mona's interest reflects the positive psychology approach.

Positive psychology is the scientific study of the biological and psychological bases of human well-being, with a special focus on the positive emotions experienced by the human being, such as happiness, and how the human body reacts to the experience of these emotions. One of the main researchers in positive psychology was Martin Seligman, a professor at the University of Pennsylvania.

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