Positive Psychology

Positive psychology is the study of happiness. Psychology traditionally focused on dysfunction—on people with mental illness or other psychological problems and how to treat them. Positive psychology, by contrast, is a relatively new field that examines how ordinary people can become happier and more fulfilled.

Optimism

Optimists have a tendency to make lemonade out of lemons, and to then see the glass as half-full rather than half-empty. It's an admirable quality, one that can positively affect mental and physical health.

Gratitude

Gratitude is an emotion expressing appreciation for  what one has—as opposed to a consumer-oriented emphasis on what one wants or needs.