cultural materialism, endeavored to explain taboos as a consequence of the ecologic and economic conditions of their societies. Taboos challenge one's free speech and individual rights to express a subject or issue in need to be addressed for the benefit, not to damage, any given society.РOther societal taboos to a certain extent or to some people are the issues of sex, death, racism, genderism, ethnicity, nationality, religion, politics, money, socio-economic class, sexual orientation and disability. People follow this advice of not discussing, joking about or making an issue of things that can lead to bigotry, discrimination and stigmatization of people with those social group differences. They developed as a result of concerns for civil rights, sensitivity and multiculturalism nowadays.