This paper considers the research on the ever-popular concept of culture shock and related ideas. Researchers from different disciplines (anthropology, education, psychiatry, psychology, sociology) have attempted to operationalise the concept, measure it, and understand the process behind it, as well as develop strategies to help those who experience it. This paper also considers issues concerned with the measurement of adjustment as well as the various groups of travellers who can have serious culture shock difficulties. Implications of this research are considered. This integrative review summarises a range of theory and evidence relevant to the UN SDGs, in particular to SDG10 which includes facilitating safe regular and responsible migration and mobility of people, including through the implementation of planned and wellmanaged migration policies. It also considers practical implications which will be of interest to medical and educational practitioners, policy makers, charitable institutions and travellers themselves. 1833 Psychology reaction of travellers. Its aim is primarily educational, aimed specifically at travellers and educators. People have, and will, always travel to "far off lands", different countries and continents and possibly soon planets, for very different purposes. They go to convert, conquer, explore, trade, teach, learn, holiday and settle. Over the last century, the reduced costs and increased ease of short and long-distance travel have shown a dramatic rise in people's movements around the world. This means that although they do not anticipate experiencing it, more and more people are confronted with culture shock.There are many ways to classify these travellers i.e. how long they go for (i.e. migrants vs. sojourners vs. tourists); how far they travel (near vs. far; familiar vs unfamiliar); their motives for movement (education, trade, expansion); the nature of stranger-host relations (friendly vs. antagonistic) etc. Furthermore, they are of interest to different academic disciplines like anthropology, economics, education, psychiatry, psychology and sociology. What they have in common is that they have to "adapt to the new environment": to learn new ways of behaving, feeling and thinking. This can be unexpected and demanding.The data on the sheer number of people moving between countries is staggering. According to the UN High Commissioner for Refugees report for 2016, in all 65.6 million people are displaced worldwide; one person flees every 3 seconds, and over half of the world's refuges are children. It is estimated that currently around 400 million people are migrants (nearly 4% of the world population); there are currently 70 million refugees; that there are nearly 5 million foreign students; and that 1.3 billion people go abroad as tourists every year. The comparative ease and cheapness of travel means that these numbers are likely to increase. Two generations ago, people in all countries tended to stay where they were: now children need passports to travel abroad. This has result...