Can opening a window while riding in a car help reduce motion sickness?

Generally speaking, opening a car window can help alleviate motion sickness symptoms to some extent while traveling by vehicle. The specific explanation is as follows:

Motion sickness is primarily caused by excessive stimulation of the inner ear's balance organs. When a vehicle is moving, the visual information perceived by the eyes does not match the motion signals sensed by the inner ear, leading the brain to receive conflicting signals, which results in a sensation of motion sickness. After opening the window, passengers can see the outside scenery more clearly, allowing the eyes to obtain more visual information about the vehicle's movement. This makes the visual information more consistent with the motion signals perceived by the vestibular system of the inner ear, helping to reduce the discrepancy between the two and thus alleviating symptoms of motion sickness.

In addition, opening the window for ventilation allows fresh air to circulate, reducing the concentration of carbon dioxide inside the vehicle and increasing oxygen supply. This helps relieve motion sickness caused by hypoxia or poor air circulation. The flow of fresh air can also make people feel more refreshed and aid in alleviating symptoms such as dizziness and nausea.

Before traveling by car, it is recommended to maintain a good sleep status and avoid excessive fatigue. Choosing a stable and well-ventilated seat during travel can also help reduce symptoms of motion sickness.