There’s nothing more aggravating than arriving at your destination groggy and red-eyed. Jet lag makes clear thinking difficult, leading to bad decisions at international business meetings, and recreational travelers find it detracts from the enjoyment of their hard-earned and time-limited vacations. Symptoms include fatigue and general tiredness, inability to sleep at night, loss of concentration, headaches, malaise and disorientation. It is caused by the disruption of biological rhythms as a result of rapid transitions across multiple time-zones. Such desynchronization of circadian rhythms also affects employees who transfer to night shifts.
Preflight preparation isone of the most important aspects of combating jet lag. Before leaving, be sure you have all your affairs, personal and professional, in order. Avoid late farewell parties, so that you are not tired or hungover from a function the night before. Participate in regular exercise in the days prior to departure and if possible try to avoid exposure to people with flu or colds. Get a full night of sleep just prior to departure.
There is evidence that jet lag is less acute on eastward rather that...