Motion sickness is a common condition that arises mainly during travel, where the brain struggles to harmonize the sensory information it receives from the eyes, ears, and nose. Symptoms can range from clumsiness and nausea to, in some instances, a high fever. Factors that may increase susceptibility to motion sickness include frequent travel, the use of hormonal birth control, a family history of the condition, migraines, and certain neurological disorders such as Parkinson's disease.