Our Hearing

Hearing Loss and Brain Shrinkage?

4 April 2022

Does hearing loss can cause the brain to "shrink" faster? Recent research from Johns Hopkins revealed that hearing loss is linked with walking problems, falls and even dementia. A study on 639 adults over the span of 12 years conducted by Frank Lin, M.D., Ph.D., found that mild hearing loss is associated with two-fold greater risk for dementia, moderate hearing loss tripled the risk whilst severe hearing loss is associated with 5 times greater dementia risk.

“Brain scans show us that hearing loss may contribute to a faster rate of atrophy in the brain,” Frank Lin M.D., Ph.D., Johns Hopkins' Expert

Friends and family may confuse a person’s loss of hearing with cognitive decline; certainly, difficulty hearing conversation can cause miscommunications, impair social interactions, and contribute to anxiety and frustration. It turns out, though, that hearing loss can actually cause a decrease in cognitive ability. And while most causes of cognitive decline are not reversible, this one is: Evidence indicates that hearing aids protect people against further cognitive decline.

In a pilot study, people with dementia started wearing hearing aids and a month later, their caregivers reported improved communication, more laughter, and more storytelling. This shows that, hearing aids enhance communication, social interaction and cognitive stimulation. They improve the quality of life for many seniors and even more so for patients struggling with cognitive decline or dementia.

Other effective interventions for preventing cognitive decline are exercise, cessation of smoking, elimination of excessive alcohol, and treatment for depression, hypertension and diabetes. Improving the lives of patients depends on treating risk factors, modifying the environment, maintaining meaningful social connections and utilizing hearing aids.

Kaitan Hilang Pendengaran dan Pengecutan Otak?

4 April 2022

Adakah kehilangan pendengaran boleh menyebabkan otak "mengecut" dengan lebih cepat? Kajian terbaru dari Johns Hopkins mendedahkan bahawa kehilangan pendengaran dikaitkan dengan masalah berjalan, mudah jatuh dan juga demensia. Satu kajian ke atas 639 orang dewasa dalam tempoh 12 tahun yang dijalankan oleh Frank Lin, MD, Ph.D., mendapati bahawa kehilangan pendengaran ringan dikaitkan dengan dua kali ganda risiko untuk mendapat demensia, manakala kehilangan pendengaran sederhana berisiko sebanyak tiga kali ganda untuk mendapat demensi manakala kehilangan pendengaran yang teruk mempunyai risiko demensia sebanyak 5 kali ganda dari pendengaran normal.

"Imbasan otak menunjukkan bahawa kehilangan pendengaran boleh menyumbang kepada kadar atrofi otak yang lebih cepat," Frank Lin M.D., Ph.D., Pakar Johns Hopkins

Rakan dan keluarga mungkin keliru yang ahli keluarga mereka sebenarnya mengalami kehilangan pendengaran yang kelihatan seperti penurunan kognitif. Ini adalah kerana, kesukaran mendengar perbualan boleh menyebabkan masalah komunikasi, menjejaskan interaksi sosial dan menyumbang kepada kebimbangan, kemurungan dan kekecewaan. Kajian menunjukkan bahawa kehilangan pendengaran boleh menyebabkan penurunan keupayaan kognitif dan walaupun kebanyakan punca kemerosotan kognitif tidak boleh dipulihkan, bukti menunjukkan bahawa alat bantu pendengaran boleh melindungi seseorang daripada kemerosotan kognitif.

Dalam satu kajian pilot terhadap penghidap demensia yang memakai alat bantu pendengaran, sebulan kemudian, penjaga mereka melaporkan komunikasi yang lebih baik, lebih banyak ketawa dan lebih banyak bercerita. Ini membuktikan bahawa alat bantu pendengaran mampu memperbaiki komunikasi, meningkatkan interaksi sosial dan rangsangan kognitif dikalangan warga emas dan lebih-lebih lagi bagi pesakit yang bergelut dengan penurunan kognitif atau demensia.

Disamping itu, cara yang paling berkesan untuk mencegah penurunan kognitif ialah senaman, berhenti merokok, penghapusan alkohol yang berlebihan, dan rawatan untuk kemurungan, hipertensi dan diabetes. Memperbaiki kehidupan pesakit bergantung pada merawat faktor risiko, mengubah suai persekitaran, mengekalkan hubungan sosial yang bermakna dan menggunakan alat bantuan pendengaran.

Bagaimana Kita Mendengar?

4 April 2022

فَبِاَيِّ اٰلَاۤءِ رَبِّكُمَا تُكَذِّبٰنِ

Maka nikmat Tuhanmu yang manakah yang kamu dustakan? (Ar-Rahman)

Perhatilah nikmat pendengaran yang Allah berikan kepada kita. Suara dan bunyi sekeliling yang jelas tetapi bunyi darah kita yang mengalir bahkan bunyi degupan jantung kita tidak kita dengari. Jadi, bagaimanakah Allah mencipta telinga kita untuk berfungsi sebegitu rupa?

Mekanisme pendengaran berfungsi apabila gelombang bunyi memasuki salur auditori telinga dan menggerakkan gegendang telinga (membran timpanik) yang seterusnya menyebabkan getaran pada membran timpanik dan tulang-tulang osikel (incus, stapes dan maleus). Pergerakan tulang stapes merangsang tingkap bujur untuk bergetar dan menyebabkan pergerakan cecair dalam koklea yang merangsang membran basilar untuk bergetar. Pergerakan ini akan merangsang organ of corti yang akan menghantar rangsangan saraf ke otak.

Untuk mendengar secara baik, kesemua bahagian telinga iaitu telinga luar, tengah dan dalam haruslah boleh berfungsi secara optimum tanpa sebarang jangkitan atau abnormaliti. Sebarang gangguan di mana-mana bahagian akan menyebabkan individu berkenaan menghadapi masalah pendengaran dan kesan masalah ini bergantung kepada tahap keterukan masing-masing. Oleh itu, jagalah pendengaran kita, nikmat tidak ternilai yang Allah berikan kepada kita.

What Type of Hearing Loss that You Might Have?

Noise-Induced Hearing Loss

This type of hearing loss can affect anyone at any age.

Noise-induced hearing loss (NIHL) is caused by exposure to loud sounds that damages or destroys the hair cells in your inner ear.

NIHL can result from a single exposure to an extremely loud impulse sound (e.g., a shotgun blast close to your unprotected ears) or regular exposure over time to sounds exceeding 85 decibels (dB).

Examples of how NIHL may occur over time include listening to music turned up to maximum volume through earbuds or working with construction

machinery without wearing hearing protection.

Sudden Hearing Loss

Hearing loss usually comes on gradually due to age (presbycusis) or NIHL taking their toll.

However, certain conditions can cause sudden hearing loss, including exposure to an extremely loud sound that causes immediate damage, certain diseases, tumor, head injury, or use of ototoxic (“ear poisoning”) drugs.

In most cases, hearing will return over time, either on its own or through medical intervention, but for some the hearing loss may be permanent.

Conductive Hearing Loss

This type of hearing loss occurs when the inner ear does not properly receive sound signals.

It can be caused by injury to the middle ear or ear canal, fluid build-up behind the eardrum, or excessive earwax.

Conductive hearing loss can usually be treated medically.

If surgery or medication is not an option for you, hearing aids can be an excellent solution to your hearing problem.

Sensorineural Hearing Loss

This type of hearing loss involves deterioration of the inner ear. The tiny hairs that line the ear passage and which carry sound have been damaged.

This type of hearing loss is most commonly caused by prolonged exposure to high volume levels, bacterial and viral infections, fluid build-up, sudden trauma to the ear, and the normal aging process.

Sensorineural hearing loss cannot be treated with medication or surgery — hearing aids are the only way to treat this permanent condition.

Hearing in The Quran

4 April 2022

God has mentioned four (4) times that he provided mankind with hearing, eyesight and brains. These three sequence are parallel with human development discovered by science.

[16:78] God brought you out of your mothers’ bellies knowing nothing, and He gave you the hearing, the eyesight, and the brains, that you may be appreciative.

[17:36] You shall not accept any information, unless you verify it for yourself. I have given you the hearing, the eyesight, and the brain, and you are responsible for using them.

[23:78] He is the One who granted you the hearing, the eyesight, and the brains. Rarely are you appreciative.

[32:9] He shaped him and blew into him from His spirit. And He gave you the hearing, the eyesight, and the brains; rarely are you thankful.

At approx. 16 weeks of pregnancy, a fetus’s inner ear structures form, and by 24 weeks, the cochlea, eardrum, ossicles, and other crucial ear structures are fully formed. Eyesight will only fully form until week 26. An unborn baby can hear as early as 18 weeks. By 27 to 29 weeks, an unborn baby can hear external sounds like their mother's voice. By the time a baby is born, their hearings are fully developed whereas their eyesight would take approx. 12 months for clear eyesight. Brains on the other hand would take about 25 years to fully developed.

Hearing is so essential that the ear does not stop functioning even during sleep. Ear can function day and night whereas eyes needed the light to see. It is only correct to say that ear is the link to the world.

When Allah the Almighty decreed that the Men of the Cave (Ashabul Kahfi) sleep hundreds of years, He said; “We then sealed their ears in the cave for a predetermined number of years.” (18 : 11)

فَضَرَبْنَا عَلَى آذَانِهِمْ فِي الْكَهْفِ سِنِينَ عَدَدا [الكهف: 11]

The absence of hearing enables the men of the Cave to sleep for hundreds of years. In the end, only Allah knows.

Source: The Holy Book of Al-Quran


What is Vertigo?

4 April 2022

فَبِاَيِّ اٰلَاۤءِ رَبِّكُمَا تُكَذِّبٰنِ

Maka nikmat Tuhanmu yang manakah yang kamu dustakan? (Ar-Rahman)

Perhatilah nikmat pendengaran yang Allah berikan kepada kita. Suara dan bunyi sekeliling yang jelas tetapi bunyi darah kita yang mengalir bahkan bunyi degupan jantung kita tidak kita dengari. Jadi, bagaimanakah Allah mencipta telinga kita untuk berfungsi sebegitu rupa?

Mekanisme pendengaran berfungsi apabila gelombang bunyi memasuki salur auditori telinga dan menggerakkan gegendang telinga (membran timpanik) yang seterusnya menyebabkan getaran pada membran timpanik dan tulang-tulang osikel (incus, stapes dan maleus). Pergerakan tulang stapes merangsang tingkap bujur untuk bergetar dan menyebabkan pergerakan cecair dalam koklea yang merangsang membran basilar untuk bergetar. Pergerakan ini akan merangsang organ of corti yang akan menghantar rangsangan saraf ke otak.

Untuk mendengar secara baik, kesemua bahagian telinga iaitu telinga luar, tengah dan dalam haruslah boleh berfungsi secara optimum tanpa sebarang jangkitan atau abnormaliti. Sebarang gangguan di mana-mana bahagian akan menyebabkan individu berkenaan menghadapi masalah pendengaran dan kesan masalah ini bergantung kepada tahap keterukan masing-masing. Oleh itu, jagalah pendengaran kita, nikmat tidak ternilai yang Allah berikan kepada kita.

Hearing Loss among Children

12 May 2022

Approximately 5% of world population (360 million people) suffers from hearing loss and 32 million of these are children.

"Failure to detect congenital or acquired hearing loss in children may result in lifelong deficits in speech and language acquisition, poor academic performance, personal-social mal-adjustments, and emotional difficulties" (Harlor & Bower, 2009)

Causes of hearing loss in children may include:

Genetic factors; constitute 40% of hearing loss causes. Frequent among child born of consanguineous marriages or unions between closely related two individuals.

Conditions at the time of birth; including prematurity, low birth weight, birth asphyxia and neonatal jaundice.

Infections; such as rubella and cytomegalovirus which lead to hearing loss in child. In addition, meningitis, mumps and measles in childhood can also result in hearing loss.

Loud sounds; from smartphones and MP3 players for prolonged periods and even short high intensity sounds from fireworks may cause permanent hearing loss.

Diseases of the ear; including too much ear wax (impacted cerumen) and glue ear (non-suppurative otitis media) which is caused by accumulation of fluid inside the ear

Medicines; used in the treatment of neonatal infections, malaria, drug-resistant tuberculosis and cancers, can lead to permanent hearing loss (ototoxic medicines).