• People with positive illusions about their relationship are more satisfied, score higher on love and trust and have fewer problems
  • People who were unrealistically idealistic about their partners when they got married were more satisfied with their marriage three years later than less idealistic people
  • Irrational overconfidence increases productivity and improves teamwork
  • The army teaches soldiers to be optimistic because it makes them tougher and more resourceful
  • Optimism is associated with better health and a longer life. It can make you happier