Why do some people get motion sickness more easily?
Quick Answer
Motion sickness happens when the brain gets conflicting signals from the inner ear, eyes, and body. Some people are simply more sensitive to that mismatch than others.
The Full Story
Motion sickness is caused by sensory conflict: the inner ear senses movement, but the eyes or body may report something different. For example, in a car, the inner ear feels motion while reading a book makes the eyes focus on a still object. The brain struggles to reconcile the mismatch, which can trigger nausea, sweating, and dizziness. Children between about ages 2 and 12 are especially prone, and susceptibility often decreases with age. Genetics and migraine history can also influence how easily someone gets motion sick.
Key Facts
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"Why does your brain hate being in the back seat?"
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