another technological advance inducing motion sickness is the growing presence of ever larger and numerous screens inside vehiclesaround 2530 per cent of the population regularly suffers from motion sickness a figure which some reckon to be conservative symptoms of this poorly understood illness include nausea sweating pallor hypothermia headaches and vomiting mildly affected patients might also experience drowsiness apathy or decreased cognitive abilities it is estimated 60 to 70 per cent of travellers will suffer from it at some point motion sickness is experienced most commonly in cars giving rise to the term car sickness passengers are prone to feeling sick because they are deprived of the capacity to anticipate trajectories in contrast to drivers advt one would have thought that in more than a century of automobile development the issue of carsickness should have been be solved but that is anything but the case as road vehicles continue to undergo technological metamorphosis upheavals such as the electrification digitalisation and automation of vehicles come with benefits and issues in fact some technological advances may create or worsen the feeling of imbalance and prevent vehicle occupants from anticipating the itinerary as a result they increase the risk of undergoing sickness symptoms more frequently below are those whose effects are already documented by nature an electric motor is more linear and quiet than a combustion engine this advantage has the downside of preventing certain car users from assimilating the movement of the vehicle for example whereas we would associate acceleration with the engine revving in classic cars electric cars suddenly deprive us of this reference point also gone are the combustion engines vibrations which some perceive as soothing the use of regenerative braking which captures the kinetic energy from braking and converts it into the electrical power that charges the vehicles high voltage battery can also upset passengers balance the decelerations induced by this system are usually low frequency which is typical of a sicknessinducing motion force advt another technological advance inducing motion sickness is the growing presence of ever larger and numerous screens inside vehicles these screens overburden users with visual information which discourages them from looking outside they thereby lose their ability to take in the correct visual signals ie the external view of the vehicle which allow them to correctly perceive their position in space that in turn induces sickness the rise of screens in cars is likely to increase in the coming years including vehicles that could even feature screens on glass surfaces or offer onboard virtual reality experiences this invasive environment can in turn impact upon passengers wellbeing indeed the mere knowledge one is likely to suffer nausea from screens can stress vulnerable passengers with research linking up to 40 per cent of motion sickness symptoms to passenger psychology the race among car manufacturers to create the first fullyautomated vehicle is also likely to worsen the problem while todays vehicles are only partially automated in future they will be able to pilot themselves