Summary
Definition
History and exam
Other diagnostic factors
- cold sweating
- dry mouth
- dizziness
- yawning and sleepiness
- pallor
- recent alcohol consumption
- unsteadiness and incoordination
Risk factors
- childhood age
- female sex
- Chinese ancestry
- FHx of motion sickness
- hx of migraine
- vestibulopathy
- visual disorder
- alcohol use
- smoking
- spatial disorientation and space-motion discomfort syndromes
- hormonal factors
- unpleasant odors/sight or smell of vomit
- conflicting sensory inputs (e.g., reading in car, tilting trains)
- psychological factors
- spatially loaded concurrent tasks
- neurologic disorder
Diagnostic investigations
Treatment algorithm
Contributors
Authors

Professor (Section Head Gastroenterology)
Wake Forest University
Health Sciences Center
Winston-Salem
NC
Disclosures
KLK is an author of several references cited in this topic.
Dr Kenneth L. Koch would like to gratefully acknowledge Dr Michael Andrew Gresty, a previous contributor to this monograph. MAG is an author of several references cited in this monograph.
Peer reviewers
Visiting Consultant to the Royal Air Force Centre for Aviation Medicine
Royal Air Force Henlow
UK
Disclosures
AJB declares that he has no competing interests.
Lecturer in Human Cardiorespiratory and Aerospace Physiology
Division of Applied Biomedical Research
Department of Physiology
King's College London
London
UK
Disclosures
DAG declares that he has no competing interests.
Department of Neurology
Park-Klinik Weissensee
Berlin
Germany
Disclosures
MVB declares that he has no competing interests.
Associate Professor
Otolaryngology and Neurology
Harvard Medical School
Boston
MA
Disclosures
RL declares that he has no competing interests.
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