Motion sickness can make road trips and carnival rides less fun or even, in really bad cases, turn them into an absolute nightmare. The solution to that, according to a group of researchers at Imperial College London? A zap of electricity to the brain. The team strapped subjects during their experiments to a spinning chair to induce motion illness. They found that when the subjects wore EEG caps with electrodes to stimulate their brains using electricity (a process known as transcranial direct-current stimulation or tDCS), they didn't experience typical symptoms like dizziness and nausea as much. Also, they recovered a lot more quickly later on.