Editing Samuel Hahnemann (section)

=== Coffee theory of disease ===
[[File:David d'Angers - Samuel Hahnemann bust.jpg|thumb|Bust of Samuel Hahnemann by French sculptor [[David d'Angers]] (1837)]]
Around the start of the nineteenth century Hahnemann developed a theory, propounded in his 1803 essay ''On the Effects of Coffee from Original Observations'', that many diseases are caused by [[coffee]].<ref>Hahnemann S (1803): ''[https://books.google.com/books?id=5LhLAAAAMAAJ&pg=PA391 On the Effects of Coffee from Original Observations]'', in Hahnemann S., Dudgeon R. E. (ed) (1852): ''The Lesser Writings of Samuel Hahnemann''. New York: [[William Radde]], p. 391.</ref> Hahnemann later abandoned the coffee theory in favour of the theory that disease is caused by ''[[Psora]]'', but it has been noted that the list of conditions Hahnemann attributed to coffee was similar to his list of conditions caused by ''Psora''.<ref>Morrell, P. (1996): [http://www.homeoint.org/morrell/articles/pm_coffe.htm On Hahnemann's coffee theory], www.homeoint.org</ref>