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It details the ear’s structure—from ear canal and eardrum through the ossicles and cochlea—to show how damage leads to either conductive or sensorineural hearing loss. The booklet quantifies prevalence in Canada, outlines major causes across birth and later life, and highlights prevention and practical actions, urging the public to listen to people who are deaf or hard of hearing.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/deafness-the-invisible-handicap-an-overview-of-hearing-loss/427387/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/deafness-the-invisible-handicap-an-overview-of-hearing-loss/427387.png","ImageObject",300,407,{"name":92,"@type":93},"McQueen","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-19","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the main purpose of this booklet?","Question",{"text":112,"@type":113},"To inform the hearing public about deafness and hearing loss, encouraging people to listen and understand the needs of deaf and hard of hearing individuals.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does hearing work according to the booklet?",{"text":117,"@type":113},"Sound travels through the ear canal to the eardrum, causing vibrations transmitted by the middle-ear bones to the cochlea, where hair cells stimulate the auditory nerve and the brain interprets the signals.",{"name":119,"@type":110,"acceptedAnswer":120},"What are the major categories of hearing loss and what causes them?",{"text":121,"@type":113},"Hearing loss occurs when damage affects the hearing system. Conductive hearing loss results from problems in the ear canal, eardrum, or middle ear, while sensorineural (nerve) deafness involves damage to the inner ear and is generally not treatable surgically or 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BEDFORD ROATORONTO,ONTARIQ M5R 2K2\n\nTable of Contents  \nI Hearing: The Philosophical Sense …………………5  \nII Communication …………………………………………………………………9  \nII The Profoundly Deaf…………………………………………………13  \nIV The Hard of Hearing…………………………………………………23  \nV Noise Pollution and Industrial Noise……………27  \nVI What You Can Do………………………………………………29  \nVII The Canadian Co-ordinating Council  \non Deafness(CCCD)……………………………………31  \nVIII Bibliography …………………………………………………………………32  \n2878S0  \nWritten by Judy Rebick  \nPublication of this booklet was made possible by  \nThe Canadian Co-ordinating Council on Deafness  \nand  \na contribution from the Nobleton Lions'Club  \nDigitized by the Internet Archivein 2019 with funding fromKahle/Austin Foundation  \nhttps://archive.org/details/deafnessinvisibl0000rebi  \n# DEAFNESS:\n\nTHE INVISIBLEHANDICAP  \n\"Hearing is the deepest most humanizing,philosophical sense man possesses…the sound of thevoice that brings language;sets thoughts astir andhelps us in the intellectual company of man.\"  \nHelen Keller  \nHearing is the sense that allows us to communicate.Aglance,a touch,a shift in body posture can communicatemeaning but without the vital link of language,human com-munication,as we know it,would not exist  \nThe vast majority of children learn language throughhearing it,imitating it,and monitoring their voices throughhearing.They soon begin to understand and speak a language.Throughout our lives we rely on spoken language as the mediumof communication.Whether through intimate conversation,meetings,telephone,radio or TV,the spoken word is theprimary conveyor of information and communication in themodern world.Those with hearing loss are to a greater or lesserdegree cut off from our world of communication.Loss of hearingis more than lack of sound.It can mean loss of social interaction,information,education,recreation and human contact.  \nOne out of every ten Canadians is deaf or hard of hearing.*One in 1500 babies has a hearing loss.By age 5,4%of Canadianchildren suffer some degree of deafness.Thirty percent ofsenior citizens lose their hearing.Despite the enormous num-bers of people with a hearing loss,few resources are devoted tothe needs of the deaf and hard of hearing.  \nThe Canadian Co-Ordinating Council on Deafness is publish-ing this booklet to inform the hearing public about deafness.The deaf and hard of hearing have been a silent minority for toolong.They are beginning to speak out.We hope you will listen.  \n*All statistics used in this booklet are projections from American figures be-cause there has been no census of the hearing impaired in Canada.3.  \ntube  \nParts of the Ear  \n# I Hearing:ThePhilosophical\n\nSense  \nThe awkward appendage we call the ear covers an extra-ordinarily sensitive and versatile organ,which can pick up thesoftest whisper and seconds later withstand the sound of anexplosion.  \nWhen sound reaches our ear,it travels through the earcanal to the eardrum,a thin but tough membrane stretchedacross the ear canal.The sound causes the eardrum to vibrateand touches off vibrations in the three bones of the middle ear.These tiny bones -the malleus,incus and stapes(sometimescalled the hammer,anvil and stirrup because of their appear-ance)work together like a bridge to carry vibrations from theeardrum to the inner ear.The inner ear is a snail-like shellcalled the cochlea.The cochlea contains thousands of tiny haircells suspended in fluid.When the vibrations reach the cochlea,the fluid moves,stimulating the hair cells which are very sensi-tive to various intensities of vibration.Each hair cell is attachedto a nerve fibre.These nerve fibres join together to make theauditory nerve,which carries impulses from the hair cells to thebrain.The brain interprets these signals and discriminatesdifferent sounds.  \nHearing loss occurs when there is damage to","cbCaivYd971f935g","https://ap.wps.com/l/cbCaivYd971f935g","pdf",1988893,"English","# Hearing: The Philosophical Sense\n## Parts of the Ear\n# Causes of Hearing Loss\n## Prevention and common causes","[{\"question\":\"What is the main purpose of this booklet?\",\"answer\":\"To inform the hearing public about deafness and hearing loss, encouraging people to listen and understand the needs of deaf and hard of hearing individuals.\"},{\"question\":\"How does hearing work according to the booklet?\",\"answer\":\"Sound travels through the ear canal to the eardrum, causing vibrations transmitted by the middle-ear bones to the cochlea, where hair cells stimulate the auditory nerve and the brain interprets the signals.\"},{\"question\":\"What are the major categories of hearing loss and what causes them?\",\"answer\":\"Hearing loss occurs when damage affects the hearing system. Conductive hearing loss results from problems in the ear canal, eardrum, or middle ear, while sensorineural (nerve) deafness involves damage to the inner ear and is generally not treatable surgically or medically.\"}]","DEAFNESS: THE INVISIBLE HANDICAP - An Overview of Hearing Loss | PDF",1790643707,101]