Culture shock refers to the difficulties people experience adjusting to a new culture different from their own. It involves feeling cut off from familiar cultural cues, living in an ambiguous situation, and questioning one's own lifestyle and values. People typically experience stages including a honeymoon period upon arrival marked by excitement, followed by unhappiness as differences emerge, then recovery as routines are established and adaptation as the new culture is accepted. Symptoms include homesickness, confusion, and irritability. To overcome culture shock, one should keep busy, make local friends, focus on positives, learn about the culture, and avoid criticizing it.