A few decades ago, social scientists believed that only people who were "rigid, repressed, and authoritarian" had stereotypes (Paul 18). However, according to several recent studies, stereotypes are unconsciously used by everyone around the world. Annie Murphy Paul proposes that stereotypes are formed because people classify others into certain groups in terms of gender, age, and race and then evaluate them according to an in-group/out-group dynamic, meaning that the people despise them. who are not part of their group in order to rise. Besides obvious differences between humans, such as gender, Forster, Gerger, and Leder (2013) propose that trivial factors like facial expressions also influence stereotypes and contribute to people's evaluations of others. Unconscious categorization and evaluation have strongly influenced Chinese people's attitudes toward Northeastern Chinese. A widely held stereotype among Southern Chinese depicts Northeastern Chinese as difficult to manage, short-tempered, and violent. This example supports experts' ideas that people unconsciously carry stereotypes, categorize and evaluate others in terms of groups, and judge people based on their facial appearance. Additionally, the example suggests that people also categorize others based on regional differences and evaluate others based on their physique. Everyone carries stereotypes, even without ever realizing it. In "Where Bias Begins: The Truth about Stereotypes", Annie Murphy Paul argues that even if a person is not racist, sexist or anti-Semitic, they still carry stereotypes, which are called automatic or implicit stereotypes (Paul 17) . . Paul cited an experiment conducted......in the middle of the article......on Northeast Chinese, it is safe to conclude that stereotypes are deeply ingrained in everyone's bones, even though they may never realize they were. use them to judge others. People are born with the intellectual capacity to categorize and evaluate people in groups. The in-group/out-group social dynamic leads them to devalue people outside their group, which leads to the formation of stereotypes. Many factors influence people's stereotypes, including race, age, gender, and facial appearance. Examining the “Northeast Chinese” stereotype reveals that region and physical appearance also have effects on stereotypes. Although it is almost impossible to erase stereotypes, since stereotypes are always associated with negative qualities, it is important that people refrain from judging people with stereotypes..