http://www.ndtv.com/offbeat/frequent-flyers-lose-health-family-love-too-1204216 The article above refers to a research paper that says that there is a "dark side" to frequent flying. It sounds like they are merely speculating and maybe even trying to convince themselves that they shouldn't be envious of us. Based on the news article, I would speculate that they did little or no actual study of real FFs and just assumed these problems were common. Maybe they just watched "Up in the Air" one too many times. I would guess that a truly scientific study of the denizens of the airways would find some very smart people who enjoy coping with the vagaries of frequent flying and are often quite creative in avoiding the concerns mentioned.