Definition of motion sickness

The term "motion sickness" describes a condition in which a person experiences discomfort and symptoms such as nausea, dizziness, and vomiting following exposure to repeated motion or movements that are not part of the body's normal acceleration. The origin of the word "motion sickness" can be traced back to the mid-19th century when scientists and physicians began to recognize and study the condition. The initial term used to describe the phenomenon was "sea sickness" due to its prevalence among sailors aboard ships. As researchers delved deeper into the subject, they realized that the condition was not limited to sea travel and could occur in various modes of transportation, such as cars, trains, planes, and other forms of mechanical motion. Hence, the term "motion sickness" was coined to encompass a broader range of situations. The exact cause of motion sickness is still not entirely understood, but it is believed to result from the conflict between visual, vestibular, and proprioceptive sensory inputs, which can lead to confusion and disorientation in the brain. Various factors can exacerbate motion sickness, such as poor ventilation, low lighting, repetitive motions, and prolonged exposure to motion. In summary, the term "motion sickness" came into existence when scientists and physicians expanded their understanding of the condition beyond sea sickness, recognizing its prevalence in other forms of mechanical motion, and coined a more descriptive and inclusive term to encompass this broader range of situations.