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Science Explains Why Electric Cars Cause More Motion Sickness: Brain Is Still Programmed for the Noise and Vibration of Combustion Engines

Written by Valdemar Medeiros
Published on 19/07/2025 at 18:00
A ciência explica por que carros elétricos dão mais enjoo: cérebro ainda está programado para o barulho e vibração dos motores a combustão
Foto: IA
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Discover How the Absence of Noise and Vibration in the Electric Car Impacts Your Body. Studies Explain Why Electric Cars Make You Sick More and How the Brain Used to Combustion Engines Reacts to Silent Vehicles

Electric cars are increasingly present on the streets of Brazil and around the world, but many drivers and passengers report an unexpected sensation when traveling in these vehicles: increased motion sickness. According to recent studies, science has a clear explanation for this phenomenon. Our brains are still conditioned to the sensory stimuli caused by combustion engines, such as the constant noise and typical vibrations of mechanical operation.

In this article, you will understand why electric cars make you sick more, the role of noise and vibrations in bodily balance, and how technological advancements can help reduce this uncomfortable sensation. We will detail the latest scientific findings and explain in simple terms how the brain reacts to the new sensory patterns of electric vehicles.

Why Do Electric Cars Make You Sick More? Understand What Scientists Say

A study published by the scientific journal Frontiers in Psychology revealed that motion sickness in electric cars is more common than previously thought, especially among passengers accustomed to traditional vehicles. The research indicates that the absence of engine noise and vibration in electric cars are the main culprits for this sensory difference.

Scientific studies indicate that the human brain adapts to environmental sensory stimuli, and more than a century of coexistence with combustion vehicles has created a perception pattern based on characteristic sounds and vibrations.

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The switch to silent vehicles with more linear acceleration creates a conflict between visual perception and the vestibular system (responsible for balance), increasing the sensation of discomfort.

Brain Accustomed to Combustion Engines Reacts Negatively to Absence of Stimuli

The brain accustomed to combustion engines associates sounds and vibrations with a reference of movement. When these stimuli disappear, the body interprets a sense of imbalance, similar to what occurs in situations of motion sickness, such as on boats or airplanes.

This disconnect between what we see (the movement of the car) and what we feel (the absence of vibration and noise) is one of the main reasons for the increase in motion sickness in electric vehicles.

How Does Engine Noise Reduce Motion Sickness?

Although silence is one of the main attractions of electric vehicles, engine noise reduces motion sickness in practical situations. Sound, even if unconsciously, serves as a cue for the brain to understand that the body is in motion.

Studies conducted by Brigham Young University, in the United States, showed that rhythmic and vibrating sounds help synchronize the sensory information received by the body, significantly reducing the symptoms of motion sickness during car trips.

Therefore, the total absence of noise in electric cars may end up having an unwanted side effect for some people.

Companies like Mercedes-Benz and BMW are already studying the introduction of artificial sounds, not only for pedestrian safety but also to minimize discomfort for occupants. The use of specific noises during acceleration, for example, tends to help the brain maintain a stable reference.

Electric Car Vibration is Less, and This Affects Body Balance

Another relevant point for the increase in motion sickness in electric cars is the nearly complete elimination of mechanical vibrations. While combustion vehicles generate tremors from the engine, transmission, and exhaust, electric vehicles are much smoother, especially at low speeds.

This reduction in electric car vibration contributes to a quieter ride; however, it also removes important stimuli for the vestibular system. Research published in Frontiers in Psychology and reports from The Guardian indicate that more sensitive passengers tend to feel more dizziness, nausea, and discomfort in urban environments due to the sensory conflict generated by the smoothness of movement and the lack of tactile and sound stimuli.

Researchers highlight that this primarily occurs in individuals who are using cell phones or reading during the trip, a situation where the sensory conflict intensifies due to the absence of auditory and tactile references.

Technological Solutions Can Help Combat Motion Sickness in Electric Vehicles

Automakers are already aware of the motion sickness problem in electric cars and are seeking smart solutions to minimize discomfort. Some strategies in development include:

  • Artificial Sounds Inside the Vehicle: as mentioned, using specific sounds can help the brain maintain a correct perception of movement.
  • Controlled Vibration Simulation: companies are studying the use of small vibrating motors in the seat or steering wheel, with the aim of recreating sensory stimuli typical of combustion engines.
  • Adjustments in Active Suspension: vehicles with adaptive suspension can be programmed to simulate small vibrations, especially on longer trips.
  • Augmented Reality Technology: manufacturers like Audi are working on head-up displays that help reduce sensory conflict by providing real-time information about speed and acceleration.

These solutions are still in development but show a promising path to reduce motion sickness in electric vehicles without compromising the benefits of silence and comfort.

The Evolution of Mobility and the Sensory Challenges of Modern Vehicles

The global transition to electric mobility brings undeniable environmental benefits, such as reduced emissions and lower maintenance costs. However, science confirms that the human body still needs to adapt to this change. The brain accustomed to combustion engines reacts negatively to the absence of sensory stimuli, leading to more cases of motion sickness in electric cars.

Experts state that this is a temporary reaction and that over time, the brain will become accustomed to the new sensory patterns. Just as happened with other means of transport, the adaptation period may vary from person to person, but the trend is that onboard technologies will be able to better balance acoustic and sensory comfort.

Adaptation is the Key to Reducing Motion Sickness in Electric Vehicles

Scientific studies make it clear that the absence of engine noise reduces motion sickness in some cases but can provoke the opposite effect in sensitive individuals due to the sensory conflict generated by the lack of noise and vibration. Motion sickness in electric vehicles is a real phenomenon, directly linked to how the brain interprets motion.

The good news is that the automotive industry is already working on effective solutions to minimize this discomfort. Whether through artificial sounds, simulated vibrations, or cutting-edge technology, the goal is to make trips more enjoyable, respecting the needs of the human body.

With the advancement of electric mobility, scientific knowledge will be essential to ensure a healthy and comfortable adaptation to this new transportation model. Stay tuned for upcoming innovations that promise to completely transform the experience aboard the vehicles of the future.

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Valdemar Medeiros

Graduated in Journalism and Marketing, he is the author of over 20,000 articles that have reached millions of readers in Brazil and abroad. He has written for brands and media outlets such as 99, Natura, O Boticário, CPG – Click Petróleo e Gás, Agência Raccon, among others. A specialist in the Automotive Industry, Technology, Careers (employability and courses), Economy, and other topics. For contact and editorial suggestions: valdemarmedeiros4@gmail.com. We do not accept resumes!

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