Several symptoms are associated with the<unk> . Typical responses include: *drowsiness *yawning *disinclination for work *lack of social participation *mood changes *apathy *sleep disturbances *other fatigue-related symptoms The<unk>  is distinguished from other manifestations of motion sickness (i.e. nausea, dizziness, etc.) in that it may occur before other symptoms of motion sickness or in their absence. The<unk>  may persist even after an individual has adapted to the other symptoms associated with motion-induced sickness. Severity The effects of the<unk>  may range from minor physical inconveniences to hazardous conditions. People who operate automobiles, airplanes, etc., may experience impaired motor function due to the motions of the vehicle. These impairments often result in a decreased attention span; those who consider themselves well-rested may still succumb to drowsiness at inopportune moments. The<unk>  may therefore contribute to motor vehicle accidents in which automobile operators fall asleep at the wheel. However, the<unk>  itself does not directly result in death. A subject experiencing the<unk>  on a frequent basis may increase the number of hours spent sleeping by fifty percent. A study of motion sickness occurrences in workers on an offshore oil vessel showed a large majority of participants experienced mild symptoms of fatigue. Many participants also experienced severe sleep disturbances. These symptoms were associated with impaired task performance.
Sopite syndrome
Larsen syndrome
Jeavons syndrome
Roemheld syndrome
Dressler syndrome
Feingold syndrome
Reynolds syndrome
Crome syndrome