psychologist

By definition gratitude is the strong feeling of needing to be as good as the other person was to me. It is a positive emotion, moral barometer and prosocial behaviour tendency.

The Terman Longevity Project placed earlier findings in different perspective. It is not enough to live a healthy marriage, in community, work without stress, do regular exercise, have good friends, eat good food, but being conscientious, enjoy what you do even if your work is not without stress, being goal-oriented and  well-integrated into your community can have an effect on your longevity. It is important to listen to these advices of the psychologist society, but equally important to strive for one's individual path toward a long and meaningful life.