Motion sickness is a condition where a person feels dizzy, nauseous, or unwell due to movement, often while traveling in a vehicle, boat, or plane. It happens when the brain receives conflicting signals from the eyes and the inner ear, which helps with balance. For example, a person might see the inside of a car while feeling the movement of the vehicle, leading to confusion for the brain. Symptoms include sweating, dizziness, nausea, and sometimes vomiting. It is more common in some people than others and can be eased by looking out at the horizon or taking medication.

What is "motion sickness"?

英語での「motion sickness」の定義と意味

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