- Charles Darwin's illness
For much of his adult life Charles Darwin's illness repeatedly affected him with an uncommon combination of
symptoms, leaving him severely debilitated for long periods of time, incapable of normal life and intellectual production, staying in bed most of the time for months. Charles Darwinwrote that "Constant attacks....makes life an intolerable bother and stops all work".
He consulted with more than 20 doctors, but with the medical science of the time the cause remained undiagnosed. He tried all available treatments, but at best they had only temporary success. More recently, there has been much speculation as to the nature of his illness.
Development of illness and symptoms
As a student of medicine at
Edinburgh University, Darwin found that he was too sensitive to the sight of blood and the brutality of surgery at the time, so he turned his attention to natural history, an extramural interest he developed further when studying at the University of Cambridgeto qualify as a clergyman.
10 December 1831, as he waited in Plymouthfor the voyage on HMS "Beagle" to begin, he suffered from chest pain and heart palpitations, but told no one at the time in case it stopped him from going on the survey expedition.cite journal |author=Woodruff AW |title=Darwin's illness |journal=Isr. J. Med. Sci. |volume=26 |issue=3 |pages=163–4 |year=1990 |pmid=2109737 |doi=] During the voyage he suffered badly from sea-sickness during the eighteen months he was at sea, but he spent much of the 3 years 3 months he was on land in strenuous exploration. In Argentinaat the start of October 1833 he collapsed with a fever. He spent two days in bed, then memories of a young shipmate who had died of the fever persuaded him to take a boat down river to Buenos Aires, lying ill in his cabin till the fever passed. On 20 September 1834while returning from a horseback expedition in the Andesmountains, he fell ill, and spent the month of October in bed in Valparaiso. In his journal for 25 March 1835, while to the east of the Andes near Mendoza, he noted "an attack (for it deserves no less a name) of the Benchuca, a species of Reduvius, the great black bug of the Pampas" which is associated with Chagas' disease.
After the voyage ended on
2 October 1836he quickly established himself as an eminent geologist, at the same time secretly beginning speculations on transmutation as he conceived of his theory. On 20 September 1837he suffered "an uncomfortable palpitation of the heart", and as "strongly" advised by his doctors, left for a month of recuperation in the countryside. That October, he wrote "Of late anything which flurries me completely knocks me up afterwards, and brings on a violent palpitation of the heart." [harvnb|Darwin|1887|p= [http://darwin-online.org.uk/content/frameset?viewtype=text&itemID=F1452.1&pageseq=305 287] , letter to Henslow, 14 October 1837.] In the spring of 1838 he was overworked, worried and suffering stomach upsets and headaches which caused him to be unable to work for days on end. These intensified and heart troubles returned, so in June he went "geologising" in Scotland and felt fully recuperated. Later that year, however, bouts of illness returned - a pattern which would continue. He married Emma Wedgwood on 29 January 1839, and in December of that year as Emma's first pregnancy progressed, he fell ill and accomplished little during the following year.
For over forty years Darwin suffered intermittently from various combinations of symptoms such as
malaise, vertigo, dizziness, muscle spasms and tremors, vomiting, crampsand colics, bloatingand nocturnal intestinal gas, headaches, alterations of vision, severe tiredness/nervous exhaustion, dyspnea, skinproblems such as blisters all over the scalpand eczema, crying, anxiety, sensation of impending death and loss of consciousness, fainting, tachycardia, insomnia, tinnitus, and depression.
Darwin had no success with conventional treatments. In 1849 after about four months of incessant vomiting he took up the recommendation of his friend Captain Sulivan and cousin Fox to try the water therapy regimen at Dr James Gully's "Water Cure Establishment" at Malvern. He read Gully's book which provided case histories and had a price list at the back. Darwin rented a villa at Malvern for his family and started a two month trial of the treatment on
10 March. Gully agreed with Darwin's self diagnosis of nervous dyspepsia, and set him a routine including being heated by a spirit lamp until dripping with perspiration, then vigorous rubbing with cold wet towels and cold foot baths, a strict diet, and walks. Darwin enjoyed the attention and the demanding regime which left him no time to feel guilty about not working. His health improved rapidly and he felt that the water-cure was "no quackery". [harvnb|Browne|1995|p=493-496] [http://www.darwinproject.ac.uk/darwinletters/calendar/entry-1236.html Letter 1236 — Darwin, C. R. to Hooker, J. D., 28 Mar 1849] . DarwinProject.ac.uk. Retrieved on 2007-01-15.] He had no faith in the homœopathic medicines Gully gave him three times a day, but took them obediently. [http://www.darwinproject.ac.uk/darwinletters/calendar/entry-1234.html Letter 1234 — Darwin, C. R. to Darwin, S. E., 19 Mar 1849] . DarwinProject.ac.uk. Retrieved on 2008-01-11.] They stayed on until 30 June, and back home at Down Househe continued with the diet, and with the water treatment aided by his butler. He followed the rules about rising early and rationing his working time, and had the Sandwalk constructed in the grounds for his walking exercise, setting a routine which he continued. [harvnb|Browne|1995|p=496-497]
In September his sickness returned during the excitement of a
British Association for the Advancement of Sciencemeeting, and Darwin made a day visit to Malvern, then recuperated at home. In June 1850 after losing time to illness (without vomiting) he spent a week at Malvern. [harvnb|Desmond|Moore|1991|p=367, 373] Later that year he wrote to Fox about the credulity of his "beloved Dr Gully" who, when his daughter was ill, had her treated her with a clairvoyant girl to report on internal changes, a mesmerist to put her to sleep, John Chapman as homœopathist and himself as Hydropathist, after which Gully's daughter recovered. Darwin explained to Fox his wrathful scepticism about clairvoyance and, worse, homeopathy, thinking the infinitesimal doses were against all common sense and should be compared against the effects of no treatment at all. Gully had pestered Darwin to subject himself to clairvoyance, and when he saw the clairvoyante he tried to test her by asking her to read the number on a banknote he had in an envelope, but she scornfully said this was something her maidservant did, and proceeded to diagnose horrors in Darwin's insides, a tale he recounted for years afterwards. [http://www.darwinproject.ac.uk/darwinletters/calendar/entry-1352.html Letter 1352 — Darwin, C. R. to Fox, W. D., 4 Sept 1850] . DarwinProject.ac.uk. Retrieved on 2008-01-11.] When Darwin's own young daughter Annie had persistent indigestion he confidently took her to Gully on 24 march 1851, and after a week left her there to take the cure, but a fortnight later was recalled by Dr Gully as Annie had bilious fever. Dr. Gully was attentive and repeatedly reassured them that she was recovering, but after a series of crises Annie died on 23 April. Darwin was heartbroken at this tragic loss, but surprisingly stayed well in the aftermath, busy with organising the funeral arrangements. [harvnb|Browne|1995|p=499-501] [harvnb|Desmond|Moore|1991|p=379-384]
Darwin kept records of the effects of the continuing water treatment at home, and in 1852 stopped the regime, having found that it was of some help with relaxation but overall had no significant effect, indicating that it served only to decrease his
psychosomaticsymptomatology. [Jensen G., [http://www.ingentaconnect.com/content/els/00223999/2003/00000055/00000002/art00311 Charles Darwin's calamitous psychosomatic disorder clarified] , Journal of Psychosomatic Research, Volume 55, Number 2, August 2003 , pp. 133-133(1).] [Smith, F. et al. "Darwin's illness". Lancet 1990;336: 1139-1140]
With the memories of Annie's death, Darwin did not want to return to Malvern. In 1856 he began writing for publication of his theory and he pressed on, overworking, until by March 1857 illness was cutting his working day "ridiculously short". He found a new hydrotherapist, Dr. Edward Wickstead Lane, whose Moor Park hydropathic establishment near
Farnhamin Surrey, was only 40 miles from Darwin's home. His condition was much as when Darwin had first seen Gully, and Dr. Lane later wrote "I cannot recall any [case] where the pain was as poignant as his. When the worst attacks were on, he seemed crushed with agony." Darwin arrived on 22 April, and wrote to Fox that "it is really quite astonishing & utterly unaccountable the good this one week has done me", deciding to stay on to 5 May. He enjoyed the more relaxed regime which did not include clairvoyance, mesmerism or homeopathy, as Lane did "not believe in all the rubbish which Dr G. does." Darwin became a complete convert, "well convinced that the only thing for Chronic cases is the water-cure", and wrote "I really think I shall make a point of coming here for a fortnight occasionally, as the country is very pleasant for walking." He told Hooker he had "already received an amount of good, which is quite incredible to myself & quite unaccountable.— I can walk & eat like a hearty Christian; & even my nights are good.— I cannot in the least understand how hydropathy can act as it certainly does on me. It dulls one's brain splendidly, I have not thought about a single species of any kind, since leaving home." then contradicted himself by asking about alpine species. [harvnb|Browne|2002|p=64, harvnb|Desmond|Moore|1991|p=453-454] cite web |url=http://www.darwinproject.ac.uk/darwinletters/calendar/entry-2085.html |title=Darwin Correspondence Project - Letter 2085 — Darwin, C. R. to Fox, W. D., [30 Apr 1857] |accessdate=2008-03-11 |format= |work=] cite web |url=http://www.darwinproject.ac.uk/darwinletters/calendar/entry-2084.html |title=Darwin Correspondence Project - Letter 2084 — Darwin, C. R. to Hooker, J. D., [29 Apr 1857] |accessdate=2008-03-11 |format= |work=]
He returned to Moor Park from 16–29 June and 5-12 November 1857, and from 20 April to 3 May 1858, but this retreat was unavailable when he was shocked by receipt of Wallace's paper on 18 June, as Dr. Lane was put on trial accused of adultery with a lady patient. Darwin was able to resume treatment at Moor Park from 25–31 October 1858, as he struggled on to write "
On the Origin of Species" despite repeated health problems. He was able to keep writing thanks to visits to the spa on 5–18 February, 21–28 May and 19–26 July 1859. [harvnb|Desmond|Moore|1991|p=467, 473-475] With the proofs of book returned to the printers he was worn out, and went with his family to a spa at Wells Terrace, Ilkley, on 2 October, that was operated by Dr Edmund Smith, a surgeon and hydropathic doctor. [cite web |url=http://www.darwinproject.ac.uk/darwinletters/namedefs/namedef-4406.html |title=Darwin Correspondence Project - Edmund Smith, 1804–64 |accessdate=2008-03-12 |format= |work=] Reading the first adverse reviews there, his health worsened with a sprained ankle followed by a swollen leg and face, boils and a rash. He had an "odious time", and wrote of Smith that "he constantly gives me impression, as if he cared very much for the Fee & very little for the patient,"cite web |url=http://www.darwinproject.ac.uk/darwinletters/calendar/entry-2533.html#back-mark-2533.f1 |title=Darwin Correspondence Project - Letter 2533 — Darwin, C. R. to Fox, W. D., [16 Nov 1859] |accessdate=2008-03-11 |format= |work=] but towards the end of the stay his health problems cleared up, and he left on 7 Decemberfeeling much better.cite web |url=http://www.darwinproject.ac.uk/darwinletters/calendar/entry-2583.html |title=Darwin Correspondence Project - Letter 2583 — Darwin, C. R. to Hooker, J. D., 14 Dec  |accessdate=2008-03-11 |format= |work=] As arguments continued, Darwin had more stomach upsets and on 28 June 1860, two days before the famous 1860 Oxford evolution debate, he fled to Lane's new hydropathic establishment at Sudbrooke Park, Petersham, near Richmond in Surrey, and recuperated as well as reading reports of the debate.cite web |url=http://www.darwinproject.ac.uk/darwinletters/calendar/entry-2854.html |title=Darwin Correspondence Project - Letter 2854 — Darwin, C. R. to Huxley, T. H., 3 July  |accessdate=2008-03-11 |format= |work=] [harvnb|Browne|2002|p=81, 87, 96] cite web |url=http://darwin-online.org.uk/content/frameset?itemID=A27&viewtype=text&pageseq=1 |title=Charles Darwin: A companion |accessdate=2008-03-11 |author=Freeman, R. B. |date= 1978 |work= |publisher=Folkstone: Dawson ]
Darwin avoided further hydropathy, perhaps recalling his time at Ilkley, and Lane left the business for a while after selling Sudbrooke Park. In 1863 Darwin's illness worsened seriously, and Emma Darwin persuaded her husband to return to Malvern. His cousin Fox had earlier told him that Gully had suffered a mental breakdown and was unavailable. [cite web |url=http://www.darwinproject.ac.uk/darwinletters/calendar/entry-4178.html#mark-4178.f5 |title=Darwin Correspondence Project - Letter 4178 — Fox, W. D. to Darwin, C. R., [16–22 May 1863] |accessdate=2008-03-09 |format= |work=] They arrived on
2 September, but Darwin felt that he was being fobbed off with the supervising physician, Dr. Ayerst. Emma arranged for Dr. Gully to attend and endorse Ayerst's treatment, but by then Darwin's eczema was too raw to bear any water. Darwin had a complete breakdown, and on 13 Octoberleft the spa worse than when he'd arrived. His ill health was the worst he had ever experienced, and continued until the start of 1866. [harvnb|Browne|2002|p=228-231]
Darwin desperately tried many different therapies, within the limitations of medical science of his time. He took all kinds of medicines, including
bismuthcompounds and laudanumand even tried quack therapies, such as electrical stimulationof the abdomen with a shocking belt. On 16 May 1865he wrote to John Chapman, who was now qualified specialist in dyspepsia, sickness and psychological medicine. [harvnb|Desmond|Moore|1991|p=530] Chapman had sent Darwin a book about a therapy for sea-sickness of applying ice-bags to the small of the back, and Darwin invited him to Down Houseto try out this therapy. In a manuscript dated 20 May 1865, thought to have been for Chapman, Darwin described his symptoms:cite web |url=http://www.darwinproject.ac.uk/darwinletters/calendar/entry-4834.html |title=Darwin Correspondence Project - Letter 4834 — Darwin, C. R. to Chapman, John, 16 May  |accessdate=2008-03-16 |format= |work=]
In his autobiography of 1876, Darwin wrote of his illness, emphasising that it was brought on by 'excitement':quotation|Few persons can have lived a more retired life than we have done. Besides short visits to the houses of relations, and occasionally to the seaside or elsewhere, we have gone nowhere. During the first part of our residence we went a little into society, and received a few friends here; but my health almost always suffered from the excitement, violent shivering and vomiting attacks being thus brought on. I have therefore been compelled for many years to give up all dinner-parties; and this has been somewhat of a deprivation to me, as such parties always put me into high spirits. From the same cause I have been able to invite here very few scientific acquaintances.
My chief enjoyment and sole employment throughout life has been scientific work; and the excitement from such work makes me for the time forget, or drives quite away, my daily discomfort. I have therefore nothing to record during the rest of my life, except the publication of my several books. ... [harvnb|Darwin|1887|p= [http://darwin-online.org.uk/content/frameset?viewtype=text&itemID=F1452.1&pageseq=97 79] .]
Medical science has tried repeatedly to pinpoint the
etiology, and many hypotheses were made, such as:
* Multiple allergies
Darwin found that his illness often followed stressful situations, such as the excitement of attending a meeting. Having escaped "smoky dirty London" to his country retreat of the former parsonage of
Down Houseat Downe, he became increasingly reclusive, actually fitting a mirror outside the house, so that he could withdraw when visitors were coming around the corner. When he left it was mostly to visit friends or relatives, though he did endeavour to meet his obligations to attend scientific meetings.
Diagnosis of panic disorder and agoraphobia
These circumstances are today considered
symptomatic of social phobia(fear of social contact) and agoraphobia(in the sense of fear of social gatherings or visitors outside a defined space they feel in control of); this supports a diagnosis of panic disorder.
Barloon and Noyesfn|1 report that as a young man, Darwin had "episodes of abdominal distress, especially in stressful situations". He had a "premorbid vulnerability" which in his youth was referred to as "sensitivity to stress of criticism in his youth." They contend that "variable intensity of symptoms and chronic, prolonged course without physical deterioration also indicate that his illness was psychiatric." Panic disorder usually appears in the teens or in early adulthood with an association with potentially stressful life transitions.fn|2 The histories of panic disorder patients often include some type of separation from a person who is emotionally important to them, which may be significant as Darwin's mother died in 1817 when he was eight, though apparently Darwin had a happy childhood overall and was encouraged by his siblings. Bowlby suggested that
separation anxietymay help cause the development panic disorder in adulthood and that agoraphobic patients frequently describe parents as dominant, controlling, critical, frightening, rejecting, or overprotective, which matches (disputed) descriptions of Darwin's father as tyrannical (see below).
A study by Chambless and Masonfn|3 says that regardless of gender, the less masculine in trait a person afflicted with panic disorder is, the more likely they are to use avoidance (social withdrawal) as a coping mechanism. Individuals who have a more masculine traits often turn to external
copingstrategies (for example, alcohol). Dr. Beanfn|4 wrote that while Darwin had great confidence, at the same time he was neurotic, became nervous when his routine was altered, and was upset by a holiday, trip, or unexpected visitor.
Colpfn|5 disputes a diagnosis of agoraphobia, because Darwin dutifully attended 16 meetings of the Council of the
Royal Societyand was away from home about 2,000 days between 1842 and his death in 1882, but Barloon and Noyesfn|1 state that Darwin only left home infrequently, usually accompanied by his wife. They cite Darwin declining an invitation; "I have long found it impossible to visit anywhere; the novelty and excitement would annihilate me".
Psychosomatic disease, social withdrawal, and isolation may also be a result of some debilitating organic disease.
Hypochondriacould be present and represent an exacerbation of organic disease. Darwin described in great length and in extreme clinical detail his suffering in his diaries (he went to the extreme of recording daily the volume and quality of his tinnitus). It is hard to tell whether some of his mostly subjective observations were real or imaginary.
Relationship with father
Rempffn|6 imputes a psychic cause based on the theory of
Oedipal complex, proposing that Darwin's illness was "an expression of repressed angertoward his father" (the physician Robert Darwin). Rempf believed that Darwin's "complete submission" to a tyrannical father prevented Darwin from expressing angertowards his father and then subsequently toward others. In a similar diagnosis English psychiatrist Dr. Rankine Good stated, "Thus, if Darwin did not slay his father in the flesh, then he certainly slew the Heavenly Father in the realm of natural history", suffering for his "unconscious patricide" which accounted for "almost forty years of severe and crippling neurotic suffering." Sir Gavin de Beer disputed this explanation, claiming a physical causation.fn|8
Darwin's autobiography says of his father, "... [he] was a little unjust to me when I was young, but afterwards I am thankful to think that I became a prime favourite with him." Bradburyfn|7 quotes J. Huxley and H.B.D. Kettlew; "The predisposing cause of any psychoneurosis which Charles Darwin displayed seems to have been the
conflictand emotional tension springing from his ambivalent relations with his father ... whom he both revered and subconsciously resented." and John Chancellor's analysis; "... [Darwin's] obsessive desire to work and achieve something was prompted by hatred and resentment of his father, who had called him an idler and good-for-nothing during his youth."
psychoanalysisremains controversial, particularly when based only on writings.
Relationship with wife, nervousness about being left alone
Peter Brent's biography "Darwin: A Man of Enlarged Curiosity" writes that Charles and
Emma Darwin's "ties to each other were linked to childhood and the very beginnings of memory. They had a common history, a joint tradition. It is hard to think their relationship a passionate one, but it was happy, and the happiness had deep roots." Bradburyfn|7 - himself a social psychologist - draws on this biography to argue that in Darwin's letters, Emma was "always the mother, never the child, Darwin always the child, never the father." who gave his wife the nickname "mammy", writing "My dearest old Mammy ... Without you, when sick I feel most desolate .. Oh Mammy, I do long to be with you and under your protection for then I feel safe." Brent states that it is difficult to see that that this is a thirty-nine year old man writing to his wife and not a young child writing to his mother. Barloon and Noyesfn|1 quote Darwin's admission to Dr. Chapman of "nervousness when Emma leaves me" which they interpret as a fear of being alone associated with his panic disorder.
Like his mother, Darwin's wife Emma was devoutly
Unitarian. His father, speaking from experience, warned Charles before he proposed to Emma that "some women suffered miserably by doubting about the salvation of their husbands, thus making them likewise to suffer." Darwin did tell Emma of his ideas at that stage, and while she was deeply concerned about the danger to his afterlife expressed in the Gospel"If a man abide not in me...they are burned", she married him and remained fully supportive of his work throughout their marriage. She read and helped with his "Essay" setting out his theory in 1844, long before he showed his theory to anyone else. She went through the pages, making notes in the margins pointing out unclear passages and showing where she disagreed. As his illness progressed she nursed him, restraining him from overworking and making him take holiday breaks, always helping him to continue with his work.
Darwin had a complex relationship to religion. The
Darwin — Wedgwood familywere of the Unitarianchurch, with his grandfather Erasmus Darwinand father taking this to the extent of Freethought, but in the repressive climate of the early 19th century his father complied with the Anglican Church of England. Charles Darwin's educationat school was Anglican, then after in Edinburghhe joined student societies where his tutors espoused Lamarckian materialism. He liked the thought of becoming a country clergyman, and before studying at the University of Cambridge, "as I did not then in the least doubt the strict and literal truth of every word in the Bible, I soon persuaded myself that our Creed must be fully accepted." The clergyman naturalist professors there who became his lifelong friends fully accepted an ancient earth, but opposed evolutionismwhich they felt would undermine the social order. He did well at theology and in his finals came 10th out of a pass list of 178. At both universities he saw how evolution was associated with radicals and democrats seeking to overthrow society, and how publicly supporting such ideas could lead to destruction of reputation, loss of position and even imprisonment for blasphemy.
At Cambridge he was convinced by
William Paley's writings of design by a Creator, but on the Voyage of the Beaglehis findings contradicted Paley's beneficent view. On his return his deepening speculations led to the inception of Darwin's theory, and he increasingly disbelieved in the Bible, gradually becoming what was later termed an agnostic.
Darwin was clearly worried by the implications of his ideas and desperate to avoid distress to his naturalist friends and to his wife. When first telling his friends he wrote "it is like confessing a murder", and his writings at the time of the
publication of Darwin's theorysuggest emotional turmoil. What is unclear is whether this was anxiety about disgrace and damage to his friends, or about his loss of faith in Christianity, or indeed a rational fear of the harsh treatment he had seen meted out to radicals and proponents of evolutionism.
The Chagas hypothesis
Advanced for the first in time in 1959, by eminent
Israeli specialist in tropical medicine, Dr. Saul Adler, from Hebrew University, the hypothesis of Chagas diseasewas based partly on the fact that during the Voyage of the BeagleDarwin was bitten by the insectvector of this disease near Mendoza to the east of the Argentinian Andeswhile on one of his land exploration trips. According to his own words, in the journal for 25 March 1835:
:"At night I experienced an attack (for it deserves no less a name) of the Benchuca (Vinchuca), a species of Reduvius, the great black bug of the
Pampas. It is most disgusting to feel soft wingless insects, about an inch long, crawling over one's body. Before sucking they are quite thin but afterwards they become round and bloated with blood."
Arguments for the Chagas hypothesis were mainly his gastric symptoms and some of his nervous signs and symptoms (caused in Chagas by an imbalance of the
autonomic nervous system), malaise and fatigue, as well as his ultimate cause of death, which seems to have been chronic cardiac failure (present in ca. 20% of Chagas patients, with cardiomegalyand ventricular tip aneurysm), accompanied by lung edema.
Evidences against the Chagas hypothesis are numerous, however:
* Darwin died at a relatively old age for his time (73 years old);
* The symptoms abated as he aged, which is not typical for the disease, where age exacerbates the symptoms.
* He didn't seem to have several of the pathological damages present at chronic Chagas disease, such as
* Some of the symptoms such as
tachycardia, fatigue and tremors were already present before the Beagle voyage;
* The numerous partial exacerbations and
remissions are unusual in Chagas disease;
* The incidence of "Trypanosome"-infested benchucas in Mendoza, Argentina (which has a colder climate), where Darwin reported the bite, is very low;
* No other members of Beagle's crew who accompanied Darwin in his land trip showed signs of a similar disease.
* According to Dr. Bean "infection with "T. cruzi" occurs not from a bite but contamination of a bite with excreta".
Recently, unsuccessful attempts were made to test Darwin's remains for "T. cruzi"
DNAat the Westminster Abbeyby using modern PCRtechniques, but were met with a refusal by the Abbey's curator. The attempt was the subject of a recent documentary of Discovery Health Channel.
The hypothesis of
Ménière's diseasehas gained some unjustified popularity. A diagnosis of Ménière's disease is based on a series of symptoms, including some which were present in Darwin's case, such as tinnitus, vertigo, dizziness, nausea, motion sickness, vomiting, continual malaise and tiredness. The fact that Darwin did not suffer from hearing loss and that 'fullness' of the ears is never mentioned practically excludes Ménière's disease. The definition of this disease is however not very solid and some form of 'a-typical Ménière's disease' remains a remote possibility. Motion sickness was present throughout his life, and became apparent very early, when he suffered horribly of sea sickness during the whole "Beagle" voyage. Darwin himself had the opinion that most of his health problems had an origin in his 4-years bout with sea sickness. Later, he could not stand traveling by carriage, and only horse riding would not affect his health. Psychic alteration often accompanies Ménière's and many other chronic diseases. An argument put forward for a diagnosis of Ménière's is that Darwin hunted a lot when he was young and could have damaged his inner earwith the repeated noise of shooting. While it is not unlikely that the noise damaged the inner ear and caused tinnitus, it can not have caused Ménière's disease. While Ménière's disease patients suffer during vertigo attacks from sickness and vomiting, the 'dyspepsia' problems of Darwin have nothing to do with it. One of the diagnoses that he received from his physicians at the time was that of "suppressed gout"; the idea that this was an early name for Ménière's lacks any ground.
Other possible causes
Evidence for familial systemic
lactose intolerancesyndrome was that vomiting and gastrointestinal symptoms usually appeared 2-3 hrs after meals, and that apparently Darwin got better when he stopped taking milkor cream [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15811889&query_hl=4] .
Food intolerance and lactase deficiency may also be confused with food allergies. Symptoms include difficulty swallowing and breathing, nausea, vomiting, diarrhea, and abdominal pain. Upon reaching several other organs in the body, allergens can cause
hives, eczema, lightheadedness, weakness, hypotension, etc. This has been proposed as the source of Darwin's illness, but the hypothesis is improbable, because, as with lactose intolerance, its temporal and causal relationship with food is easily established, and this was not always the case.
Chronic arsenic poisoning () has been considered too. This hypothesis has been advanced by John H. Winslow, who published a book arguing that Darwin took
arsenicat low dosages as a remedy and that there was "a very close match" between his symptoms and those of arsenicosis. However, it is highly improbable too, due to the long duration of the illness (40 years), the abruptness of symptoms, the cause of his death, the absence of many symptoms and signs of this kind of poisoning (persistent weight lossand diarrhea, the appearance of dark brown calluses on the palms and the soles of the feet and of skin, known as hyperpigmentation).
From a clinical point of view, perhaps Darwin suffered from more than one disease, and had many psychosomatic complications and phobias arising from his debilitating condition. This is known to happen with many patients today, such as in severe cases of panic disorder, usually accompanied by hypochondria and depression.
Peter Medawarhas supported the diagnosis that Darwin's health problems were part organic, part psychological. Colpfn|5 concluded that Darwin's illness consisted most probably of panic disorder without agoraphobia, psychosomatic skin disorder, and possibly Chagas disease of the stomach" which he suggested "was first active and then became inactive, permanently injuring the parasympathetic nerves of his stomach and making it more sensitive to sympathetic stimulation and hence more sensitive to the "psychosomatic impact of his anxieties. An organic impairment best explains the lifelong chronicity of many of his abdominal complaints." Thus, the psychological aspects of Darwin's illness might be both a cause and an effect of Darwin's illness. D.A. B. Young noted in a Royal Society journal a 1997 that today the psychogenic view of Darwin's sickness "holds the field" . The proponent of Chagas disease, Dr. Saul Adler, stated that Darwin may have suffered both from Chagas diseas and from "an innate or acquired neurosis".
Many of Darwin's children suffered from similarly vague illnesses for much of their early lives [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=9849520&query_hl=17] , but it has been speculated that part of this may have been simply because he encouraged a household where sickness was a form of attention and socialization. Darwin himself — concerned with
heredity— wondered if he had passed on his general infirmary condition to his children, and was especially interested if his marriage to Emma Wedgwood, a cousin, was not perhaps also responsible (his concerns later in life with the effects of inbreedingwere potentially motivated by this personal aspect as well).
Contribution to Darwin's work
Interestingly enough, it seems that Darwin's maladies actually may have contributed a lot to what many believe was a long and fruitful creative process in science. George Pickering in his book, "Creative Malady" (1974) wrote that isolated from social life and obligations of a "normal" scientist, such as administrative and teaching work, Darwin had ample time and material comforts for researching, thinking, and writing extensively, which he did. Despite the long periods of unproductivity caused by ill health, Darwin produced much research. Darwin often complained that his malady robbed him of a half lifetime, but even so, many believe that his scientific contributions can be compared favorably to those of such figures as
Isaac Newtonand Albert Einstein.
Darwin himself wrote about this, in his autobiographical "Recollections of the Development of my Mind and Character" (1876) [http://www.stephenjaygould.org/library/darwin_autobiography.html] :
:Lastly, I have had ample leisure from not having to earn my own bread. Even ill-health, though it has annihilated several years of my life, has saved me from the distractions of society and amusement.
The exact nature of Darwin's illness or illnesses remain mysterious at this time. Unless sophisticated molecular probing of his biological remains is allowed, no definitive diagnosis can be reached. At the same time, historical investigations are probabilistic. There appears to be increasing support for the diagnosis that both organic and psychological ailments combined to cause his illness.
The issue has become embroiled in the
creation-evolution controversy, with allegations that Creationistsare drawing attention to interpretation of the illness to damage Darwin's reputation, and counter-allegations that admirers of Darwin refuse to accept faults in the man.
# This article is partly based on
Renato M.E. Sabbatini's article "A Misteriosa Doença de Darwin" [http://www.sabbatini.com/renato/correio/medicina/cp991008.htm] , published on October 8, 1999. Reprinted with permission, extended and translated here by the author.
# The author translated and revised the Brazilian second edition of Desmond & Moore's biography of Darwin.
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*fnb|7 [http://www3.mistral.co.uk/bradburyac/dar9.html Bradbury, Andrew, J - Charles Darwin - The Truth? - Father to the Man - Of Father Figures - In Sickness and In Ill Health ]
*fnb|8 [http://omni.cc.purdue.edu/~sbenning/el102c/Darwin.html Carolyn Douglas - Changing Theories of Darwin's Illness ]
*fnb|9 [http://www.icr.org/index.php?module=articles&action=view&ID=112 Jerry Bergman - Was Charles Darwin Psychotic? A Study of His Mental Health (#367)]
* [http://www.aboutdarwin.com/timeline/time_03.html AboutDarwin.com ]
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* [http://www.robertgordon.net/papers/four.html Circumnavigating Darwin - A paper by Dr Robert Gordon and Deborah Thomas]
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