Ménière's disease turn, is strongly associated with developing MD, but not everyone with EH develops MD: "The relationship between endolymphatic hydrops and Meniere's disease is not a simple, ideal correlation." Additionally, in fully developed MD the balance system (vestibular system) and the hearing system (cochlea) of the inner ear are affected, but there are cases where EH affects only one of the two systems strong enough to cause symptoms. The corresponding subtypes of MD are called "vestibular MD", showing symptoms of vertigo, and "cochlear MD", showing symptoms of hearing loss and tinnitus. The mechanism of MD is not fully explained by EH,
One Word is Too Often Profaned manner, Edward Williams and Mary Shelley were not afflicted by jealousy regarding this relationship. In fact, Mary Shelley was quite fond of Jane and Edward Williams and Shelley enjoyed Edward's company too. Shelley and Edward Williams drowned while on a boating trip on 8 July, 1822. Shelley wrote a number of poems devoted to Jane including "With a Guitar, To Jane", "One Word is Too Often Profaned", "To Jane: The Invitation", "To Jane: The Recollection" and "To Jane: The Keen Stars Were Twinkling". In "One Word is Too Often Profaned", Shelley rejects the use of the word Love to describe