Cultural norms are an important concept in discussing acculturation because they define the shared systems of symbols, meanings, and conduct within a cultural group. Acculturation describes the process individuals go through when entering a new host culture, including initial adaptation excitement, hostility toward cultural differences, increased ability to function in the new culture through assimilation, identifying positive and negative aspects of both cultures through adjustment, and eventually integrating the ability to function comfortably in both cultures through biculturalism. Symptoms of culture shock like depression, fatigue, and overemphasis on health may exist as a response to increased anxiety when unfamiliar with a new culture's norms and may vary depending on the stage of acculturation. Uncertainty reduction theory also plays a role as