If you want to live happily every after you get married then be sure to never let the laughter go out of your relationship. Comedian Yakov Smirnoff shares with us some insights into how laughter in a relationship can be a gauge of how healthy that relationship is. Couple’s who laugh together last together is the conclusion from one professor, Dr. John Gottman, who has studied relationships for over 40 years. Live, Love, Laugh.