ABSTRACT
Next to the “hangover,” “jet lag” is one of the most common, self-inflicted maladies of today’s jet-age world. It usually afflicts the international traveler with a variety of psychophysiologic symptoms including gastrointestinal distress, loss of appetite, insomnia, headaches, irritability, dizziness, and a general feeling of weakness and fatigue. Some individuals are more resistant than others, but almost all airline passengers experience some aspect of the problem after crossing three or more time zones. Yet, the pervasiveness of the so-called “jet-lag syndrome” has had a negligible, if any, impact on the widespread popularity of international air travel.
