JET-LAG

In this paper, we analyzed jet-lag syndrome, a transient circadian rhy thm sleep disorder produced by an abrupt desynchronization between the internal clock and environmental cues. Jet-Lag is an entirely self-in flicted condition resulting from transmeridian air travel. As determin ant factors of jet-lag circadian rhythmicity, number of time zones tra versed, velocity and direction of travel, and capacity of adaptation t o the new time zone are considered. Likewise, diagnostic criteria, cli nical symptoms and polysomnographic features of jet-lag are also descr ibed. Finally, we conclude by outlining some recommendations for clini cal intervention used to alleviate jet-lag.