A physical condition caused by crossing time zones during flight; often the result of disruption to the circadian rhythms of the body
fatigue and sleep disturbance resulting from disruption of the body's normal circadian rhythm as a result of jet travel
jet lag in BRIT, also use jetlag If you are suffering from jet lag, you feel tired and slightly confused after a long journey by aeroplane, especially after travelling between places that have a time difference of several hours. the tired and confused feeling that you can get after flying a very long distance, especially because of the difference in time between the place you left and the place you arrived at. Period of adjustment of biological rhythm after moving from one time zone to another, experienced as fatigue and lowered efficiency. It reflects a delay in the synchronization of changes in the level of blood cortisol, the major steroid produced by the adrenal cortex (see adrenal gland), with the local day-night cycle. Duration and severity depend on how much distance is covered in how little time. Travel by jet, after which the phenomenon may persist for some days, first made it noticeable, accounting for the name
feeling of exhaustion and disorientation caused by travelling between time zones
n the feeling of being tired in the day and awake at night after a long airplane flight
A physiological condition caused by the disorientation of a person's biological clock due to travel across several time zones Characterized by irritability, lethargy, insomnia, and other symptoms
disturbance induced by a major rapid shift in environmental time during travel to a new time zone