PT - JOURNAL ARTICLE AU - Bhanu P. Kolla AU - R. Robert Auger TI - Jet lag and shift work sleep disorders: How to help reset the internal clock AID - 10.3949/ccjm.78a.10083 DP - 2011 Oct 01 TA - Cleveland Clinic Journal of Medicine PG - 675--684 VI - 78 IP - 10 4099 - http://www.ccjm.org/content/78/10/675.short 4100 - http://www.ccjm.org/content/78/10/675.full SO - Cleve Clin J Med2011 Oct 01; 78 AB - Jet lag sleep disorder and shift work sleep disorder are the result of dyssynchrony between the internal clock and the external light-dark cycle, brought on by rapid travel across time zones or by working a nonstandard schedule. Symptoms can be minimized by optimizing the sleep environment, by strategic avoidance of and exposure to light, and also with drug and behavioral therapies.