Passengers are more likely to get motion sickness in a well-sealed car because the enclosed environment can reduce fresh air circulation and intensify sensory mismatch. Here's why:
Lack of Fresh Air: In a sealed car, airflow is limited, and carbon dioxide levels can rise, especially when the air conditioning is on recirculate mode. Poor air quality and stuffiness can make passengers feel nauseous more easily.
Sensory Conflict: Motion sickness often occurs when there is a disconnect between what your eyes see and what your inner ear senses. In a well-sealed car, windows may be closed or tinted, reducing visibility of the outside environment. Passengers can't easily see the road or horizon, which increases the sensory mismatch.
Stronger Smells: A sealed car traps odors like fuel, food, or even perfumes, which can aggravate motion sickness in sensitive individuals.
Temperature and Humidity: Sealed vehicles may also build up heat and humidity faster if climate control isn't effective, which can increase discomfort and nausea.
To reduce the risk of motion sickness, it's helpful to crack open a window for fresh air, avoid reading or looking at screens, and try to face forward while watching the road.
