Motion sickness arises from a “mismatch in sensory cues,” according to Hac. Our bodies rely on three key inputs for movement perception: visual cues, balance signals from the inner ear, and sensory feedback from our body. When these signals conflict—such as focusing on a phone instead of observing movement outside—it can lead to motion sickness.
Research highlights that this issue may be more pronounced in electric vehicles (EVs). Experts note that humans have learned to associate sound with vehicle movement. Without the familiar sounds and vibrations of a traditional engine, the lack of auditory cues in EVs may contribute to motion sickness, as explained by Di Giulio.
Additionally, the regenerative braking mechanism in EVs can exacerbate the problem. This process involves slowing down the vehicle by using energy to recharge the battery, which must be performed smoothly. Otherwise, it can result in sudden deceleration, making passengers feel as if they’re rocking back and forth, as Hac points out.
Carolyn Le, a 24-year-old from California, experiences severe motion sickness when riding in her friend’s electric vehicle in busy urban areas, stating that the regenerative braking makes it feel like the car is constantly stopping.
