Many passengers experience nausea and vomiting while traveling by bus, particularly on long distances or winding roads. Doctors refer to this as “motion sickness,” a condition arising from a conflict between visual perception and the body’s balance system communicated through the inner ear. Symptoms include dizziness, discomfort, cold sweats, nausea, and vomiting. Experts explain that motion sickness occurs when the signals received by the eyes do not align with those from the inner ear, causing sensory mismatch. The article details simple methods for preventing this common travel ailment. Further information regarding detailed prevention methods is available in the full report. Addressing this imbalance can significantly improve the travel experience for susceptible individuals.