Habituation is a technique whereby exposure to motion can reduce the symptoms of motion sickness over time. Many sailors commonly refer to this as “getting their sea-legs”. Military personnel and astronauts endure habituation in special motion simulators which eventually reduces their symptoms. However, anyone can attempt to habituate to motion sickness, for example by getting on a ship whilst moored in harbour for several minutes a day for a few days prior to departure. The bad news is that the resistance to motion sickness which habituation brings wears off in a week or so. Much simpler to pick up a pair of TravelShades!