Edited excerpt from FOMO: This Is The Best Way To Overcome Fear Of Missing Out by Eric Barker:
The more a person is inclined to gratitude, the less likely he or she is to be depressed, anxious, lonely, envious, or neurotic.
Try a simple experiment: Look around. What good things might you be taking for granted? Home? Family? Friends? Now take a couple seconds to imagine those were taken away from you. How would you feel? Bad things happen to us randomly, right? So to some degree, you are lucky to have what you do.
Does this exercise sound silly? Research shows it works. Mentally subtracting cherished moments from your life makes you appreciate them more, makes you grateful and makes you happier.
(1) If you then express that gratitude by thanking people, it also improves relationships. See “Don’t take one another for granted” in What happens if you apply marriage advice to work relationships?
(2) Cf. Genuine praise.
(3) Cf. You can train yourself to think positively.