Cultural shock is a kind of complex emotional stress that occurs when people move from one culture to another. It happens when we understand that some basic presumptions we make about life and the way we live no longer seem appropriate in a new environment. The necessity to deal with different language, new unspoken rules and unusual physical surrounding can motivate some degree of culture shock and the bouts of depression that usually accompany it. So you’d better develop a strategy how to deal with it before you face it moving international.