Some common mental disorders, according to the National Institute of Mental Health (mental illnesses or disorders are lowercase, except when known by the name of a person, such as Asperger's syndrome):

Does schizophrenia need to be capitalized?

In a word, no, schizophrenia is not capitalized. As you know, capitalization is a matter of grammar and academic style. According to APA style, common nouns aren't capitalized; only proper nouns are capitalized (APA p. 102).

Is major depressive disorder capitalized?

Words like counselor and psychologist should not be capitalized and even though specific mental disorders like major depressive disorder are often capitalized, we shouldn't privilege particular words just because we feel like it or just because the American Psychiatric Association would like those words to take on ...