Homosexuality and The Church of Jesus Christ of Latter-day Saints a cure and ... become normal again." The pamphlet taught that church leaders may assist gay members by reciting scripture; appealing to their reason; encouraging them to abandon gay lovers and associates; praying with them; and encouraging them to replace any sexual expression of their homosexual feelings with heterosexual expressions like opposite-sex dating. The pamphlet emphasized that "[h]omosexuality CAN be cured." In 1973 the American Psychiatric Association’s removed homosexuality from the Diagnostic and Statistical Manual of Mental Disorders and in 1990 the World Health Organization removed homosexuality from the list of disorders classified in the tenth edition of the International
Causes of mental disorders animal studies, and some inconsistent evidence for infectious and immune mechanisms (including prenatally) in some human disorders, infectious disease models in psychiatry are reported to have not yet shown significant promise except in isolated cases. There have been some inconsistent findings of links between infection by the parasite Toxoplasma gondii and human mental disorders such as schizophrenia, with the direction of causality unclear. A number of diseases of the white matter can cause symptoms of mental disorder. Poorer general health has been found among individuals with severe mental illnesses, thought to be due to direct and indirect factors including diet,