the organism, in other words, neurasthenia was the result of (auto)intoxication. Eventually he separated it from anxiety neurosis, though he believed that a combination of the two conditions existed in many cases. In 19th-century Britain and, by extension, across the British Empire, neurasthenia was also used to describe mental exhaustion or fatigue in “brain workers” or in the context of “overstudy”. This use was often synonymous with the term “brain fag”. Diagnosis From 1869, neurasthenia became a "popular" diagnosis, expanding to include such symptoms as weakness, dizziness and fainting. A common treatment promoted by neurologist S. Weir Mitchell was the rest cure, especially for women. Data from this period gleaned from the Annual Reports of Queen Square Hospital, London, indicates that the diagnosis was balanced between the sexes and had a presence within Europe. Virginia Woolf was known to have been forced to have rest cures, which she describes in her book On Being Ill. Charlotte Perkins Gilman's protagonist in The Yellow Wallpaper also suffers under the auspices of rest cure doctors, much as Gilman herself did. Marcel Proust was said to suffer from neurasthenia. To capitalize on this epidemic, the Rexall drug company introduced a medication called 'Americanitis Elixir' which claimed to be a soother for any bouts related to neurasthenia. Treatment Beard, with his partner A.D. Rockwell, advocated first electrotherapy and then increasingly experimental treatments for people with neurasthenia, a position that was controversial. An 1868 review posited that Beard's and Rockwell's knowledge of the scientific method was suspect and did not believe their claims to be warranted. William James was diagnosed with neurasthenia, which he nicknamed 'Americanitis', and was quoted as saying, "I take it that no man is educated who has never dallied with the thought of suicide." In 1895, Sigmund Freud reviewed electrotherapy and declared it a "pretense treatment." He emphasized the example of Elizabeth von R's note that "the stronger these were the more they seemed to push her own pains into the background." Nevertheless, neurasthenia was a common diagnosis during World War I for "shell shock", but its use declined a decade later. Soldiers who deserted their post could be executed even if they had a medical excuse, but officers who had neurasthenia were not executed. Current opinion This concept remained popular well into the 20th century, eventually coming to be seen as a behavioural rather than physical condition. Neurasthenia has largely been