African Americans [ ... ] are a racially mixed or mulatto people—deeply and overwhelmingly so" (see genetics). After the Emancipation Proclamation, Chinese American men married African-American women in high proportions to their total marriage numbers due to few Chinese American women being in the United States. African slaves and their descendants have also had a history of cultural exchange and intermarriage with Native Americans, although they did not necessarily retain social, cultural or linguistic ties to Native peoples. There are also increasing intermarriages and offspring between non-Hispanic blacks and Hispanics of any race, especially between Puerto Ricans and African Americans (American-born blacks).
Chinese Americans illness is likely to persist, and so is the stigma. As a result, the mindset of many Chinese Americans is formulated as diseases with genetic causes being more serious than those without. The same journal also delivers some hypotheses made on the basis of the long history of eugenics in China. First, Chinese Americans are more in favor of eugenic policies than European Americans. Secondly, more stigma would be generated towards genetic attributions of any diseases in Chinese American population. China used to implement restrictions on marriage licenses to people with genetic illnesses, which has made the attitude of Chinese