The Sunday Read: ‘The Woman Who Could Smell Parkinson’s’

smell is a powerful sensory. capability it's the most evocative sense. we have the one most bound up with. memory and we and other animals use it. to do some really remarkable. stuff all sorts of species fish Birds. probably elephants rely on smell to. guide them on their great migrations for. example rats can sniff out. landmines and yet of our various senses. smell is also the one that we tend to.

neglect we treat it as if it were a. little bit primitive sort of childish or. generally. unserious you might say we look down our. noses at. smell and so when a woman in Scotland. realized that she could actually smell. Parkinson's disease that the illness. itself gave off what was to her this. intense musty oily odor and gave it off. years before a. diagnosis it took a little while before.

doctors and scientists really began to. listen my name is Scott Seer and I'm a. contributor to the New York Times. magazine for a recent piece I spent a. bunch of time with joy mil a Scottish. retiree with a really extraordinary nose. and you'll hear about her in this week's. Sunday. read Joy's always been a hyper osmic or. what's maybe better known as a super. smeller she actually makes serious. adaptation to her life in order to avoid.

certain sense she'll only drink water. that comes from a spring for instance. she changes sidewalks to avoid the stink. of men's spray deodorant which he. particularly. detests so one day many years ago Joy. caught a whiff of something new on her. husband A peculiar unpleasant scent. something stale and thick it was only. much later years after he'd been. diagnosed with Parkinson's that she. realized that everyone else she met with.

Parkinson's smelled exactly the same as. he. did when Joy first told scientists about. this bizarre realization not too many of. them took her. seriously but then they ran some initial. tests and those tests showed that Joy. was absolutely unequivocally capable of. telling Parkinson's patients from people. without the. disease they've also now studied her. nose quite extensively and they're using. the particulars of what she smells to.

develop an early diagnostic test for. Parkinson's that's a kind of test that. doesn't exist yet for the disease and. one researcher told me it's a kind of. Holy Grail for the. field Joy's ability has profoundly. shaped her life as you might imagine and. it might one day shape the lives of many. many other people but to me what Joy's. really doing is seeing where until now. medicine has only been able to look and. she's seeing with her nose.

so here's my article the woman who could. smell Parkinson's read by Robert petoff. our audio producer today is Adrien Hurst. the original music you'll hear was. written and performed by Aaron. [Music]. Esposito as a boy Les mil carried an air. of Triumph about him and an air of. Sorrow Les was a particularly promising. and energetic young man an all Scottish. swi Champion head boy at his Academy in.

dunde a top student Bound for medical. school but when he was young his father. died his mother was institutionalized. with a diagnosis of manic depression and. he and his younger brother were. effectively left to fend for themselves. his high school girlfriend Joy was drawn. to him as much by his sadness as his. talents by his yearning for her care we. were very very much in love joy now a. flax in haired 72-year-old grandmother.

told me recently in a somewhat less. conventional way she also adored the way. Les smelled and this Aroma of salt and. musk accented with a suggestion of. leather from the carbolic soap he used. at the pool formed for her a lasting. sense of who he was it was just him Joy. said a steadfast marker of his identity. no less distinctive than his face his. voice his particular quality of.

Mind Joy had always been an unusually. sensitive nose The Inheritance she. believes of her maternal line her. grandmother was a hyper osmic and she. encouraged joy as a child to make the. most of her abilities quizzing her on. different varieties of rows teaching her. to distinguish the scent of the petals. from the scent of the leaves from the. scent of the pistols and. stamans still her grandmother did not. think OD of any kind to be a polite.

topic of conversation and however rich. and enjoyable and dense with information. the old factory world might be she urged. her granddaughter to keep her experience. of it to herself Les only learned of. Joy's peculiar nose well after their. relationship began on a trip to the. Scandinavian far north Joy would not. stop going on about the creamy odor of. the tundra or what she insisted was the. aroma of the cold itself.

Joy planned to go off to University in. Paris or Rome faced with the prospect of. tending to his mother alone however Les. begged her to stay in Scotland he. trained as a doctor she as a nurse they. married during his residency he was soon. the sort of capable young physician one. might hope to meet a practitioner of. uncommon enthusiasm and shortly after. his 30th birthday he was appointed. consultant anesthesiologist at mfield. District General Hospital outside.

Manchester in England the first in his. graduating class to make. consultant the Mills installed. themselves in an ancient stone Farmhouse. high on a country hill in chesher by. then they had three young sons and the. edifice which was old enough to be. listed in the Doomsday Book of 1086 was. a happy never-ending project they threw. elaborate boozy dinner parties they kept. geese and hens and took in stray cats. dogs dogs a duck we just seemed to get.

on and do things Joy told me friends. still liken her to Marry Poppins part. twinkly magic part No Frills. practicality she considers herself to be. a neverstop person she said her husband. was the same Les spent long hours in the. surgical Theater which in mfield had. little in the way of ventilation and joy. typically found that he came home. smelling of anesthetics antiseptics and.

blood but he returned one August evening. in 1982 shortly after his 32nd birthday. smelling of something new and distinctly. unsavory of some thick. must from then on the odor never ceased. though neither Les nor almost anyone but. his wife could detect it for Joy even a. small shift in her husband's Aroma might. have been caused for distress but his. scent now seemed to have changed. fundamentally as if replaced by that of.

someone else she thought he smelled. vaguely of his. mother Les had lately begun to change in. other ways however and soon the smell. came to seem almost trivial it was as if. his personality had shifted Les had. rather suddenly become detached. ill-tempered apathetic he ceased helping. out with many household chores he. snapped at his boys at parties out he. took to behaving in an excessive.

theatrically buoyant way before. returning home to collapse in exhaustion. Joy felt these performances Were Meant. in part to spite her to prove that her. complaints about his new demeanor were. unfounded there was no empathy she says. an odd physical deterioration also. seemed to have begun at the house he was. awkward with the mower on a vacation to. the Scottish Coast he and his sons took. sailing lessons the boys took to it.

quickly but Les could not work out the. timing a golf club slipped from his. hands mid swing playing darts at a. friend's house he somehow managed to. throw one into his. foot Les's sleep too was increasingly. Disturbed and bizarrely he began acting. out his dreams he once dreamed of. catching a burglar Joy lied to friends. and colleagues about the source of the. bruises she she was left with thinking.

no one would believe that her husband. had attacked her as he slept nor at. Les's unequivocal demand did she speak a. word of his Newfound impotence in. private he laid the blame on her she had. grown too fat he said to be of any. possible. interest the man Joy married had no such. cruelty in him she considered leaving. after more than a decade of alienation. and resentment however it began to occur.

to her that the changes in her husband. might have some organic cause that they. might be symptoms of some disease when. he began referring to the other person a. shadow off to his side she suspected a. brain tumor eventually she prevailed. upon him to see his doctor who referred. him to a neurologist in. Manchester Parkinson's disease is. typically classed as a movement disorder. and its most familiar symptoms tremor. rigidity a slowing known as Brady.

kinesia are indeed. motoric but the diseases autonomic. psychological and cognitive symptoms are. no less terrible and commonly begin. during the so-called prodrome years. before any changes in movement and yet. they do not suggest a. diagnosis irritability fatigue troubled. sleep these are extremely common among. the well and among the infirm they can. be associated with any number of.

conditions in Parkinson's it is only in. retrospect that they are revealed to. have been the first trace of the illness. for Les Joy realized the symptoms had. begun nearly a decade and a half before. he saw a doctor had it only been. possible then to see them for what they. were she thought to reach a diagnosis. when they first emerged so much. confusion so much resentment and so much. pain might have been Aver.

of the truly devastating diseases of. neurod degeneration Parkinson's is after. Alzheimer's the most prevalent it is. also said to be among the most treatable. the existing therapies address its. symptoms alone however there is no cure. no intervention to Halt the progression. of the disease or reverse its damage to. the brain the great difficulty of early. diagnosis is perhaps the principal. hurdle Parkinson's disease is still.

diagnosed essentially as it was 200. years ago on the basis of its. characteristic motor symptoms yet by the. time these emerge most of the neurons it. will kill have already died trying to. rescue the brain from that level of. damage is very difficult says David T. Dexter a neuropharmacologist who. oversees research at the Medical. Foundation Parkinson's UK you're trying. to close the stable door after the horse. has bolted.

really for a disease modifying therapy. to have a meaningful shot at efficacy it. would most likely need to be applied far. earlier years or even decades before. most patients are currently. diagnosed tilok kunat a professor at the. University of Edinburgh told me that an. early diagnostic was a sort of Holy. Grail for the field the prerequisite for. almost everything else the Michael J fox. foundation for Parkinson's research the. world's largest nonprofit funer of.

Parkinson science has spent more than. $900 million looking for such a. biomarker with the exception of one that. involves a spinal tap which considerably. limits its utility almost nothing has. shown. promise Les was 44 he began treatment. with L Doopa the amino acid that has now. been the standard of care in Parkinson's. disease for 60 years lopa is extremely. well tolerated but over time its.

efficacy fluctuates and wanes at a. certain point the dopamine Agonist. repino was added to Les's regimen it was. reasonably effective but also as Joy put. it to me vile later she came to believe. it was the cause of much of the. inappropriate behavior her husband soon. began to display at the time she had no. explanation dopamine agonists are now. recognized to cause severe problems of. impulse control and Parkinson's patients.

often develop addictions to shopping or. gambling in Les the problems were in the. realm of sexuality he stockpiled. pornography and boasted of his sexual. prowess to appalled younger women at a. party at the house in chesher shortly. after his retirement at 50 his fatigue. in particular had become unmanageable. Les came down the stairs in Tartan. patterned underwear sat in the lap of a. female guest and turned to the onlookers.

in. Glee the symptoms of the disease itself. worsened too Les's voice quieted and he. developed a slow shuffling gate often. freezing mid-stride. soon he could no longer dress himself he. began wearing diapers his sleep was ever. more. irregular the effects of his medication. were also less and less predictable and. he seemed to flip randomly from. relatively functional on periods to off.

periods of uncontrollable discinesia and. despair Alzheimer's is often called The. Long goodbye but the term is a no less. accurate description of Parkinson's in. which patients bear the added pain of. self-awareness of recognizing that a. gulf has opened between themselves and. the kingdom of the well and of watching. it grow wider each day A Friend Of Joy. Katherine havranek had a husband Ivon. who likewise had Parkinson's Ivonne was.

a devoted amateur chist he chose to turn. in his cherished instrument while he was. still capable of carrying it up the. stairs to the dealer on his own he said. that it was too good a cello to waste on. him Catherine told. me Joy's life was given over almost. entirely to Les's care as well as to the. care of his chaotic mother Helen when. Les was diagnosed she really went off. the deep end Joy told me Helen was once. again placed in a psychiatric ward and.

she then moved in with joy and Les soon. thereafter Helen herself was diagnosed. with Parkinson's in retrospect it seemed. almost certain that her long-standing. psychiatric problems were in fact. manifestations of the disease misread. for decades by doctors who conceived of. Parkinson's as a movement disorder alone. and one erroneously thought to be quite. rare in. women after Helen's death joy and Les.

returned to Scotland settling in Perth a. town in the Midlands they were ever more. estranged from each other locked in. their tense routine they knew no one. feeling desperate Joy eventually. persuaded Les to go with her to a. meeting of local Parkinson's patients. and their. caregivers the room was half full by the. time they arrived near the coat stand. Joy squeezed behind a man just as he was. taking off his jacket and suddenly felt. a twitch in her neck as if some fight.

ORF flight Instinct had been activated. and she raised her nostrils. instinctively to the air she often had. this reaction to strong unexpected. scents in this case bizarrely it was the. disagreeable odor that had hung about. her husband for the past 25 years the. man smelled just like him Joy. realized so too did all the other. patients the implications struck.

[Music]. immediately for nearly all the recorded. history of medicine and until only quite. recently smell was a central. preoccupation the miasma theory of. disease predominant until the end of the. 19th century held that illnesses of all. kinds were spread by noxious odors by a. similar token particular scents were. understood to be Curative or.

prophylactic more than anything however. odor was a tool of. diagnosis the Ancients of Greece and. China confirmed tuberculosis by tossing. a patient's sputum onto hot coals and. smelling the fumes typhoid fever has. long been known to smell of baking bread. yellow fever smells of raw meat the. metabolic disorder fenel ketonuria was. discovered by way of the musty smell it. leaves in urine while fish OD syndrome. or trimethylaminuria is named for its.

scent dogs are able to smell an. extraordinary range of illnesses. including covid-19 though they have been. tested most extensively for cancers in. one famous case from 1989 reported in. the Lancet a woman in England noticed. that her Doberman border colly cross had. begun sniffing intently at a small mole. on her leg after several months the dog. tried to bite it off this caused the. woman to see a doctor it was a malignant.

melanoma most diseases can be identified. by methods more precise and asensi. scientific than Aroma however and we. tend to treat odor in general as a sort. of. taboo a venerable intellectual tradition. has associated olfaction with the. Primitive and the childish writes Mark. Jenner a professor of history at the. University of York modern doctors are. trained to diagnose by inspection. palpation percussion and. oscilation inhalation is not on the list.

and social norms would discourage it if. it were during her time as a Nurse Joy. had done it anyway reflexively and. learned to detect the acetone breath. that signaled an impending diabetic. episode the wet Brown cardboard Aroma of. tuberculosis not wet White cardboard. because wet White cardboard smells. completely different she explained or. the rancid of Luc. emia the notion that Parkinson's might.

have a distinctive scent of its own had. not occurred to her then but when it did. occur to her years later it was hardly. exotic she and Les worried that the. normosmics of the world unfamiliar with. medical smells and disinclined to talk. about odor in general might not take her. Discovery very. seriously they searched for an. open-minded scientist and after several. weeks settled on kunat the park 's. researcher at the University of.

Edinburgh in 2012 Joy attended a public. talk he gave during the question and. answer session she stood to ask do. people with Parkinson's smell different. kunat recalls I said do you mean do. people with Parkinson's lose their sense. of smell smell loss is in fact a common. early symptom of the disease and she. said no no no I mean do they smell. different and I was just like like uh.

no joy went home kunat returned to his. usual. work 6 months later however at the. urging of a colleague who had once been. impressed by cancer sniffing dogs kunat. found Joy's name and called her she told. him the story of Les's new. smell I think if she'd told me that as. he got Parkinsons he had a change in. smell or if it came afterwards I. probably wouldn't have followed up. anymore kunat told me but it's this idea.

that it was years before he called per. Baron an analytical chemist to ask what. she made of Joy's claims Baron suspected. Joy was simply smelling the usual odor. of the elderly and infirm and. misattributing it to Parkinson's I knew. because we all know that old people are. more smelly than young people says Baron. who is now a professor of mass. spectrometry at the University of. Manchester still Baron was personally. acquainted with The Oddities of old.

faction following a bike accident she. had for several years experienced. various bizarre distortions to her own. sense of smell the idea that Joy might. be capable of experiencing odors that no. one else could did not strike her as. entirely. outlandish she and kunat ran a small. pilot study in Edinburgh through. Parkinson's UK they recruited 12. participants six local Parkinson's. patients and six healthy.

controls each participant was asked to. wear a freshly laundered t-shirt for 24. hours the warn shirts were then cut in. half down the center and each half was. placed in its own sealed plastic bag. kunat oversaw the testing Joyce smelled. the T-shirt halves at random and rated. the intensity of their parkinsonian odor. she would find a positive one and would. say there it's right there can you not. smell it kunat recalled. neither he nor the graduate student.

assisting him could smell a thing kunat. unblinded the results at the end of the. day we were on a little bit of a high he. recalled not only had Joy correctly. identified each sample belonging to a. Parkinson's patient but she was also. Able by smell to match each sample half. to its partner Baron's skepticism. evaporated still Joy's record was not. perfect she had incorrectly identified.

one of the controls as a Parkinson's. patient the researchers wondered if the. sample had been contaminated or if Joy's. nose had simply gotten tired by Baron's. recollection kun's response was it's. fine it's one false positive Baron. herself was slightly more cautious Joy. had mislabeled both halves of the man's. T-shirt of more immediate interest. though was the question of what was. causing the smell in the first place the.

odor seemed to be concentrated not in. the armpits as the researchers had. anticipated but at the. neckline it took them several weeks to. realize that it perhaps came from sebum. the lipid Rich substance secreted by the. skin sebum is among the least studied. biological substances it is actually. another waste disposal for our system. Baron says but no one had ever thought. that this was a bodily fluid we could. use to find out about disease Baron set.

out to analyze the sebum of Parkinson's. patients hoping to identify the. particular molecules responsible for the. smell Joy detected a chemical signature. of the disease one that could be. detected by machine and could thus form. the basis of a universal diagnostic test. a test that ultimately would not depend. on Joy's or anyone else's. nose no one seemed to be interested in. funding the work though there were. established protocols for working with.

sebum and Grant reviewers were. unimpressed by the tiny pilot study they. also appeared def find the notion of. studying a grandmother's unusual. olfactory abilities to be faintly. ridiculous the response was effectively. oh this isn't science science is about. measuring things in the Blood Baron. says Baron turned to other. projects after nearly a year however at. a Parkinson's event in Edinburgh a. familiar-looking man approached kunat he.

had served as one of the healthy. controls in the pilot study you're going. to have to put me in the other category. he said according to. kunat the man had recently been. diagnosed with. Parkinson's kunut was stunned Joy's. misidentification had not been an error. but rather an act of. Clairvoyance she had diagnosed the man. before medicine could do.

[Music]. so funding for a full study of Joy the. smell and its chemical components now. came through we saw something in the. news and we thought wow we've got to act. on that says Samantha Hutton the. director of translational research at. the Michael J fox Foundation the NIH is. not going to fund that who's going to. fund it if not. us at 25 NHS clinics in England and. Scotland. Baron arranged for nurses to swab the.

upper backs of Parkinson's patients with. small squares of medical gauze and to. mail her the samples by standard post. unlike blood sebum does not require a. cold. chain in Manchester she and her. colleagues fed the samples into a gas. chromatograph Mass spectrometer a gcms. machine separates a substance into its. component molecular parts for. identification it cannot tell you how. they smell however or even if they smell. at all like all sense perceptions smell.

is the brain's internal representation. of the outside world without a nose and. brain to translate it into scent a. molecule is simply a molecule what it is. about any particular molecule that. causes it to smell the way it does is. one of the great outstanding Mysteries. of the. senses Baron added an odor port to the. usual gcms setup a rather goofy twoot. length of of tube that resembled an. elephant's trunk emerging from the side.

of the machine Joy was positioned there. breathing in each type of molecule as it. came off the separation. column of the more than 200 molecular. fragments the machine distinguished Joy. reported a strong Parkinson's likee. scent in the presence of just three. icosane and octadecanal which are known. to have weak waxy or oily smells and. hippuric acid which is not typically. orted to have any smell at all each of.

the chemicals was found in notably. higher concentrations in the sebum of. Parkinson's patients than in controls. the researchers wrote in their 2019. report this was the source of the. Parkinson scent but why those particular. chemicals were arriving on the skin and. what exactly they represented remained. uncertain in a 2021 metabolomic analysis. of parkinsonian sebum published in natur. Communications Baron and her colleagues.

found evidence of changes in two. important human metabolic pathways the. first implicating mitochondria the. second Additionally implicating the. organel known as. lomes the Pathways in question exist in. cells throughout the body but they are. particularly active in our brains where. disruptions to mitochondrial and. lysosomal function are known features of. Parkinson's disease the byproducts of. these disrup uped Pathways the molecules.

Joy detected were it seemed being. somehow transported to the surface of. the body with her nose the researchers. came to suspect Joy was smelling the. very death of the. brain Joy has attained a certain. prominence in the Parkinson's realm the. work she inspired is in the words of the. research director at the Cure. Parkinson's Foundation Simon St likely. to become that stuff of Legend Joy is. list as a co-author on all the papers.

she was named to the clinical science. subcommittee of the world Parkinson. Congress she has given the inevitable. Ted X talk she has the ear of some of. the world's most respected scientists we. need to trace it back from what she. detects to its origin to see what caused. that the Nobel laurate Randy sheekman. who serves as scientific director of the. Parkinson's research initiative known as. ASAP told me she's a rare commodity. she has twice been flown to Tanzania for.

testing on tuberculosis in East Africa. the nonprofit organization apopo uses. giant pouched rats to diagnose the. disease Joy outs smms the. rats Amazon has been in touch with her. co-authors about the possibility of. adding a smell functionality to its. Alexa. devices the fascination with joy is of. course attributable to the fact that she. can smell the way she can but it is. heightened by the fact that no one knows.

why she is hyperosmia by any reasonable. definition but hyperosmia has been the. object of so little serious scientific. investigation the smell Taboo in action. no doubt at least in part that it lacks. even a set of agreed upon definitional. criteria its specific cause is. unclear Professor Thomas HL of the. Dresden University of Technology a. preeminent clinical investigator of olac. function told me his research suggests.

that self-reported hyposmic have more. connectivity in the higher brain regions. responsible for ol faction these people. pay more attention to odors they take. more out of the olfactory signal huml. said but at this stage this is merely a. hypothesis hyposmic also seem to have. more consensual compromise seeking. personalities he noted it's a very weak. correlation huml said but it's there. they also report more enjoyment of.

sex Joy has enjoyed her Fame but the. smell workor also radicalized her in its. way and she has a reputation for being a. bit intransigent in her. advocacy the initial scientific. skepticism toward her was of a piece she. thought with what she already held to be. the medical core's hopeless. wrongheadedness about Parkinson's. disease for joy as for many caregivers. the psycholog iCal aspects of the. illness were by far the most difficult.

to manage much less accept and these. happened to be precisely the symptoms. neurologists seemed least interested in. acknowledging let alone addressing. you're saying things to doctors and. nurses and they're not believing you Joy. told me eventually Les's dementia and. sexual compulsion intensified to such a. point that she worried about leaving him. alone with his young. grandchildren are neurology really. willing to accept that they allow people. to get that bad and for the families to.

be going through that she asked it's. unethical Les was hospitalized at one. point and joy arranged for him to be. monitored under a protocol for patients. with psychological disturbances a nurse. had the protocol lifted because he only. had Parkinson's Joy said they shut the. door put the C sides up and left him and. in the middle of the night he walked. across the bed hit the wall with his. head and was on the floor for goodness.

knows how. long to Joy's mind still more proof of. this medical obstinacy came from the. discovery that she was not alone in her. ability to smell Parkinson's disease. when the research first began to attract. attention in the media Baron and kunat. received messages from around the world. from people reporting that They too had. noticed a change in the smell of their. loved ones with Parkinson's The. Correspondents described an odor that. was musty oily or akin to sour milk a.

man from New Mexico claimed to have. diagnosed an acquaintance a year before. his doctor a Parkinson's patient wrote. of the social isolation he experienced. as a result of his own strong odor one. woman began I am a well-educated and. sane person so please don't disregard my. email but for the smell taboo Joy. thought someone somewhere might have. taken these people seriously and the. importance of the odor might have been.

realized decades. [Music]. sooner that Parkinson's has a. distinctive odor and chemical signature. has now been thoroughly demonstrated but. on its own this concept is not much more. than a. curiosity the reason for the initial. interest in Joy was not merely her claim. that a smell existed. but that it occurred very early in the.

course of the disease but Joy's ability. to smell Parkinson's had not yet been. tested on early stage patients it is. difficult to recruit such people into. studies precisely because there is no. good way to find them they haven't yet. been diagnosed with. Parkinson's a few years ago after. reading about Joy the neurologist verer. Pua called Baron with what he thought. might be a solution Pua a prominent. Parkinson's researcher and clinician at.

the Medical University of inbrook had. lately been interested in the condition. known as isolated REM sleep behavior. disorder or irbd in which patients act. out their dreams Les had developed the. condition years before his Parkinson's. diagnosis and irbd is now known to be. strongly predictive of Parkinson's. nearly eight in every 10 new irbd. patients will be diagnosed with. Parkinson's or a related disease within. a decade reports of irbd and Related.

Disorders increased during the covid-19. pandemic and some researchers fear a. coming wave of Parkinson's. diagnosis in Austria three dozen people. were recruited some with irbd some with. Parkinson's and controls with neither. condition a nurse swabbed the. participants upper backs and the samples. were sent to Baron and joy for chemical. and olfactory analysis this was merely a. pilot study Pua cautioned but the.

results were almost too good to believe. in subjects with irbd joy found a scent. that was similar to that of Parkinson's. but less offensive and clearly. distinguishable she described it as. biscuit. sweet the chemical signatures that. appeared in gcms were likewise. distinctive and it was possible to. distinguish parkinsonian sebum from irbd. sebum from control sebum with perfect.

accuracy yet irbd shared a great number. of the chemical features of Parkinson's. at somewhat lower levels the condition. appeared the researchers wrote in a. draft of their findings posted last year. to the pre-print server bioarchive to be. an intermediary phenotype a waypoint. along the path toward the disease the. shared chemical features could be early. indicators of pre-manifest P D They. concluded which is to say an early.

diagnostic much remains to be done the. results must be confirmed in larger. cohorts and by separate research groups. and the actual predictive power of the. test must be established for a given. level of these early indicators with how. much certainty can it be said that a. person will in fact develop Parkinson's. in what time. frame answers to these questions will. come only from longitudinal studies and. it will be years before the answers are.

known but Baron kunat and joy have begun. to imagine the possibility of using. sebum tests to screen for Parkinson's on. a broad scale kunat mentioned to me that. he had recently turned 50 the Scottish. Health System automatically mailed him a. stool sampling kit to screen for bowel. cancer in a similar manner it would be. simple to send out cotton swabs for. Parkinson's Baron and the University of. of Manchester have spun off a company. sioix to commercialize such a test Baron.

is also enthusiastic about the prospect. of detecting other conditions in sebum. which turns out to be a repository of. all sorts of information to be honest I. really think that was the biggest. Discovery she told. me Pua is more circumspect he envisions. sebum analysis as perhaps one of a. constellation of screening tests from. which a risk profile could emerge he. says I don't think this will be the.

test but if a sebum swab suggested. Parkinson's in a patient with no outward. signs perhaps the patient would undergo. more invasive testing perhaps she would. then begin early treatment with whatever. neuroprotective drugs were by then. available their development having. itself been made possible by the ability. to identify and study early stage. Parkinson's patients and perhaps as a. consequence the patient would never go. on to develop the classical symptoms of.

Parkinson's at. all I think that's realistic for the. future I think that will happen Pua says. the question is when in the meantime the. question is what good it would do to. tell an otherwise healthy person that he. or she will someday fall victim to a. terrible disease and whether such a. person would want or should want to. know it helps research Pua says I'm not. sure it helps.

people in the past half century medicine. has come to favor a high degree of. transparency the patient's autonomy is. Paramount and he or she thus enjoys a. right to know enshrined most famously in. the doctrine of informed consent at the. same time technological progress has. vastly expanded the realm of the. knowable but knowledge can punish or. paralyze too often information has been. viewed to be an unmitigated blessing the.

Oxford University law Scholars Jonathan. Herring and Charles Foster have written. life and Medicine are not that. simple I met Joy the spring before last. at her home in a tidy subdivision on. canu hill in Perth Scotland overlooking. the expansive Green Valley of the Tay. Les died in 2015 at 65. Joy lives alone with a spoiled fat sheep.

dog named Queenie a short walk up from. the house she and Les shared she gave me. a tour of her manicured garden and took. out photographs of the family's old. farmhouse in chesher but she was most. excited to show me her spice collection. this is my delicious drawer she told me. in the kitchen with an air of Mischief I. had assumed that given her extreme. sensitivity Joy would be attracted to. only the mildest sense. totally the opposite she said and she.

began pulling out jars of ground ginger. coriander two distinct cinnamons. acuminous gam Masala she opened a vial. of all spice and banged on the side to. release a bit of powder into the air. it's all around us now she crowed after. a bit of rifling she Drew out some. cardamom pods she transferred a few to a. mortar pestled Them Softly closed her. eyes and bent over the bowl in. reverence I found Joy's ingenuous thrill.

to be strongly endearing but I like many. others was also a bit terrified of her. nose the radio journalist Elise Spiegel. met Joy several years ago for a story on. NPR Alzheimer's which Joy can detect. runs in Spiegel's family if she did. smell it would I be able to tell Spiegel. wondered in her report how good was her. Poker Face. it is Joy's policy not to disclose. disease odors to the people she meets.

and she politely evaded Spiegel's. questions for whatever reason she was. more direct with me one morning in her. living room she commented unbidden upon. my strong male scent I was a ghast I. wasn't going to bring this up I said no. no it isn't like that Joy assured me. it's a normal male smell almost like. salt and a few chemicals and and it's. sharp but deep it's when it gets to that.

creamy smell and loses that sharpness. that I begin to think oh what's. wrong it was relieving to receive a. clean bill of health given Joy's usual. non-disclosure policy I did wonder if. she might be telling me a white lie but. I concluded eventually that she would. not have offered one. unprompted on the other hand it was. discomforting to know that she had been. smelling me at all our Notions of. privacy are calibrated to the sensory.

capabilities of the average other person. we learn to live with the reality that. if someone is just a foot away he or she. may be able to see the tiny pimple on. our chin or smell our breath or perhaps. hear the swash of our saliva but we. assume that at a slightly greater. distance we are safe that these intimate. embarrassments will pass. undetected I am pleased to say that I am. not a smelly person or so I am old but. it was hard not to fret about what else.

beyond my male smell might be accessible. to Joy's nose nor is it always. straightforward for Joy she smells. disease everywhere without seeking it. out in the checkout at marks and Spencer. on the street on her friends and. Neighbors when we met Joy informed me. that Les's mother was not the only other. member of the family to be diagnosed. with Parkinson's so too she eventually. discovered were Les's maternal. grandfather his maternal Uncle his.

estranged younger brother his was. evidently a hereditary form of the. disease and given its incidence in Les's. family almost certainly an autosomal. dominant form which is to say a form. that would be quite likely to manifest. in his children in all probability at. least one of his and Joy's Three Sons. would have inherited the. gene Joy declined to discuss any genetic. testing her sons may have undergone and.

though she promised several times to put. me in contact with them she never did I. saw no dignified reason to press the. matter any further in the abstract. however I can just as easily imagine. them fathers themselves choosing to. remain ignorant of their inheritance and. of their likely fate as choosing to. learn it some of us like to feel the. wind of Providence in our faces and. others like everything planned and write. the legal Scholars Herring and Foster.

each person should be allowed to choose. how to approach his or her. future Joy Of course will have no such. Choice the wind of providence is always. blowing her nose cannot help making out. whatever tragedies May float upon it. whatever her own wishes she will be made. to know. [Music].