Such as that country"s clean, pleasant, beautiful architecture, there are unique attractions, food is delicious. By this will happen after passing just long. Those in the new culture will be to compare the new culture with their traditional culture By looking at the new culture negative, such as lack of friendly people, rude, felt different. Feel self is not part of the society. In this period, there will be a highly emotional state specifically. Symptoms of paranoid and depressive illnesses. Many people even locked room and a homesick (Homesick) such as exchange student many people ที่สอบ scholarship to travel came in various countries. And from their homeland will feel lonely, lonely feeling เหมือนไม่มีใครอยู่ side by side, loss of self-confidence. Until there to stand but, refusing to come out to meet people feel that people in a culture that มนั้. Without interaction with each other. Some symptoms don"t want food and symptoms of depression, crying for no reason.