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Hearing aids: all you need to know

According to the National Institute on Deafness and Other Communication Disorders, nearly 30 million Americans could benefit from hearing aids, yet less than 30% of individuals ages 70 and older and 16% of those ages 20 to 69 use them.

What is a hearing aid?

A hearing aid is a discreet, wearable device that helps people with hearing loss hear more clearly by amplifying sounds. Worn either inside or behind the ear, hearing aids capture sounds from the environment through a tiny microphone, processes and enhance them with sophisticated digital technology, and deliver the improved sound directly into the ear. By making speech, music, and everyday noises easier to hear, hearing aids play a vital role in improving communication and connection with the world around us. Today’s hearing aids are highly customizable, adapting to different levels of hearing loss and various listening environments to provide a natural and comfortable listening experience.

When hearing aids were invented

The history of hearing aids dates back several centuries, with early attempts focused on simple mechanical devices to amplify sound. The first known hearing aids were ear trumpets, used as far back as the 17th century, which were large, funnel-shaped tools that helped direct sound into the ear. Significant advancements came in the late 19th and early 20th centuries with the invention of the telephone and the development of electronic amplification. The first electric hearing aid was created in the 1890s by Miller Reese Hutchison, who developed a device called the Akouphone. This early hearing aid used a carbon transmitter to amplify sound, marking a key breakthrough in hearing technology. Over time, hearing aids evolved from bulky, external units to the tiny, digital devices worn today, thanks to innovations in electronics, miniaturization, and digital signal processing.

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Types of hearing aids

Behind-the-Ear (BTE)

Behind-the-ear (BTE) hearing aids are one of the most common and versatile types of hearing devices. They sit comfortably behind the ear and connect to an ear mold or dome that fits inside the ear canal. BTE hearing aids are suitable for a wide range of hearing losses, from mild to profound, and are known for their durability and powerful amplification. Their design allows for larger batteries and advanced features, making them a popular choice for both adults and children.

In-the-Ear (ITE)

In-the-ear (ITE) hearing aids are custom-made devices that fit directly into the outer ear. They are larger than some other styles, making them easier to handle and ideal for people who prefer a more visible but still discreet option. ITE hearing aids are suitable for mild to severe hearing loss and often include features like volume control and directional microphones. Because they fill the ear, they can provide a natural sound experience while being convenient for daily use.

In-the-Canal (ITC)

In-the-canal (ITC) hearing aids are smaller devices that fit partly into the ear canal, making them less visible than larger styles. They are custom molded to fit comfortably inside the ear, offering a good balance between discretion and functionality. ITC hearing aids are suitable for mild to moderate hearing loss and often include features like volume control and telecoil options, providing clear sound while remaining relatively easy to handle.

Completely-in-Canal (CIC)

Completely-in-canal (CIC) hearing aids are the smallest and most discreet type, fitting entirely inside the ear canal. Because of their tiny size, they are nearly invisible when worn, making them a popular choice for those seeking a subtle solution. CIC hearing aids are best suited for mild to moderate hearing loss and offer a natural listening experience. However, their small size means they may have fewer features and shorter battery life compared to larger models.

Receiver-in-Canal (RIC)

Receiver-in-canal (RIC) hearing aids feature a small device worn behind the ear, connected to a tiny receiver placed directly inside the ear canal by a thin wire. This design allows for a lightweight, comfortable fit with powerful sound quality. RIC hearing aids are suitable for a wide range of hearing losses and often include advanced features like wireless connectivity and noise reduction. Their discreet appearance and excellent sound clarity make them a popular choice for many users.

Invisible-in-canal (IIC)

Invisible-in-canal (IIC) hearing aids are the smallest and most discreet type of hearing aids, designed to fit deep inside the ear canal where they are completely hidden from view. Because of their nearly invisible placement, they offer a natural look and are ideal for people who want a hearing solution that’s virtually undetectable. IIC hearing aids are best suited for mild to moderate hearing loss but may have limited features and shorter battery life due to their tiny size.

Parts of a hearing aid

Hearing aids are sophisticated electronic devices designed to improve hearing by amplifying sound. They consist of several essential components that work together seamlessly:

  • Microphone: Captures sound from the environment and converts it into electrical signals.
  • Amplifier: Increases the strength of the electrical signals received from the microphone.
  • Speaker (Receiver): Converts the amplified electrical signals back into sound and delivers it to the ear.
  • Battery: Powers the hearing aid; may be disposable or rechargeable.
  • Digital signal processor (DSP): Processes and fine-tunes the sound based on the user's hearing loss and environmental conditions.
  • Ear mold or dome: Fits inside the ear canal and delivers sound comfortably and effectively.

These components work in unison to provide clearer, more personalized hearing experiences for users.

How hearing aids work

Hearing aids work by capturing sound from the environment and making it louder and clearer for people with hearing loss. They use a microphone to pick up sounds, which are then converted into digital signals by a built-in processor. This processor analyzes and enhances the sound based on the wearer’s specific hearing needs, amplifying important frequencies while reducing background noise. The improved sound is then delivered through a speaker, or receiver, directly into the ear canal. However, hearing aids work differently depending on the type of electronics they use—analog or digital—which affects how sounds are processed and amplified.

Analog hearing aids

Analog hearing aids work by converting sound waves into continuous electrical signals that are then amplified. These devices simply make all sounds louder without distinguishing between speech and background noise.

While analog hearing aids tend to be more affordable and straightforward, they offer limited customization and fewer advanced features compared to digital models. Because they amplify all sounds equally, users may find it harder to focus on specific sounds in noisy environments.

Digital hearing aids

Digital hearing aids convert sound into digital signals, allowing advanced processing and precise customization based on the wearer’s unique hearing loss. This technology enables the device to amplify important sounds like speech while reducing background noise and minimizing feedback.

Digital hearing aids often include features such as noise reduction, directional microphones, and wireless connectivity, providing a clearer, more natural listening experience. Their ability to be programmed and fine-tuned makes them highly effective for a wide range of hearing needs.

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Advances in hearing aid technology

In recent years, hearing aid technology has made remarkable strides, transforming these devices from simple amplifiers into intelligent, connected tools that enhance both hearing and overall quality of life. Below are some of the key technological advancements that are redefining what hearing aids can do:

Wireless and Bluetooth connectivity

Wireless and Bluetooth connectivity allow hearing aids to stream audio directly from phones, TVs, and other devices, providing clearer sound and greater convenience. Users can also adjust settings through smartphone apps, making daily use simpler and more personalized.

Rechargeable hearing aids

Rechargeable hearing aids are becoming increasingly popular, eliminating the hassle of frequently changing disposable batteries. These eco-friendly models typically offer a full day of use on a single charge and come with convenient charging docks, making them ideal for everyday use and travel.

Artificial Intelligence integration

Some of the latest hearing aids use AI to learn from the user's behavior and listening environments. These smart devices automatically adjust settings based on patterns—like boosting speech in a crowded room or lowering wind noise outdoors—providing a more intuitive and effortless listening experience.

Buying the right hearing aid

1. Assessing hearing loss

Before choosing a hearing aid, it’s essential to have a professional assessment of your hearing loss. An audiologist conducts comprehensive tests to determine the type and degree of hearing impairment. This evaluation helps identify which frequencies are affected and guides the selection of the most suitable hearing aid. Accurate assessment ensures that the device is tailored to your specific needs, maximizing its effectiveness. Always consult a qualified healthcare provider to discuss your hearing concerns and determine the best course of action.

2. Lifestyle consideration

When selecting a hearing aid, it’s important to consider your lifestyle and daily activities. Factors such as your work environment, social life, and hobbies can influence the type of hearing aid that will work best. For example, someone frequently in noisy settings may benefit from advanced noise-canceling hearing aids, while an active person might prioritize durability and sweat resistance. Understanding these aspects helps ensure the hearing aid complements your routine comfortably and effectively.

3. Cost and insurance/Medicare coverage

Hearing aids typically cost between $1,000 and $4,000 per device, depending on the technology and features. While many insurance plans do not fully cover hearing aids, some offer partial reimbursement or discounts. Medicare generally does not cover hearing aids, although certain Medicare Advantage plans may provide some benefits. It’s important to check your specific insurance policy and explore all available options.

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Hearing aid fitting

Hearing aid fitting is a personalized process that ensures the device provides optimal comfort, performance, and benefit. After a detailed hearing assessment, the audiologist programs the hearing aids to match the user’s specific hearing profile and lifestyle needs. The physical fit is carefully adjusted to sit comfortably and securely in the ear. During the fitting, users also receive guidance on how to wear, clean, and care for their devices. Follow-up visits are typically scheduled to fine-tune settings and address any concerns, helping ensure the hearing aids deliver the best possible results in everyday situations.

How long hearing aids last

Hearing aids typically last between 3 to 7 years, depending on factors like the quality of the device, how well it’s maintained, and the user’s lifestyle. Regular cleaning, proper storage, and timely battery replacement can help extend their lifespan. Advances in technology also mean that newer models may become outdated faster, prompting some users to upgrade more frequently. While hearing aids are built to be durable, components can wear out over time, and repairs may be needed to keep them functioning optimally.

Cleaning hearing aids

Regular cleaning is essential to maintain hearing aid performance and longevity. Earwax, dust, and moisture can block key components and reduce sound quality. Most hearing aids come with a cleaning tool kit that includes a soft brush, wax removal loop, and cleaning cloth to help users safely clean the devices at home. These tools make it easy to remove debris from the microphone, speaker, and vents. Removable parts like domes or earmolds should also be cleaned regularly. Storing hearing aids in a dry, protective case when not in use and scheduling occasional professional cleanings ensures they stay in top condition.
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FAQs on hearing aids

Can hearing aids help everyone with hearing loss?

Hearing aids can help most people with hearing loss, but they are especially effective for those with sensorineural hearing loss, which affects the inner ear or auditory nerve. This is the most common type of hearing loss in adults, accounting for about 90% of all cases—making the majority of individuals good candidates for hearing aids.

Some people with conductive hearing loss, which involves the ear canal, eardrum, or middle ear, may also benefit from hearing aids, though others may require alternative treatments such as bone-anchored hearing devices or medication.

Determining whether hearing aids are the right solution involves a comprehensive hearing evaluation, including a case history, ear exam, audiologic and speech-in-noise testing, and sometimes cognitive screening.

Do hearing aids help tinnitus?

Yes, hearing aids can help manage tinnitus for many people, especially when hearing loss is also present. By amplifying external sounds, hearing aids make background noise more audible, which can help mask the ringing or buzzing sounds of tinnitus and make them less noticeable.

Some modern hearing aids also include built-in sound therapy features, such as white noise or soothing tones, designed specifically to reduce the perception of tinnitus.

While hearing aids do not cure tinnitus, they can significantly improve comfort and quality of life for those who experience it.

Are hearing aids tax deductible?

In the United States, hearing aids are considered a qualified medical expense and may be tax deductible if you itemize your deductions. The IRS allows you to deduct unreimbursed medical expenses that exceed 7.5% of your adjusted gross income (AGI), and this includes the cost of hearing aids, batteries, repairs, and even related doctor visits.

To claim the deduction, you must keep detailed receipts and records of all eligible expenses. Additionally, if you have a Health Savings Account (HSA) or Flexible Spending Account (FSA), you can use those pre-tax funds to pay for hearing aids, which can reduce your overall tax burden. It's always wise to consult a tax advisor to ensure you’re maximizing any potential benefits.

Can airpods be used as hearing aids?

AirPods and similar wireless earbuds can offer some hearing support through features like “Live Listen” on iPhones, which uses the phone’s microphone to amplify nearby sounds.

While this can help in certain situations, AirPods are not a substitute for hearing aids. They lack the advanced sound processing, customization, and medical-grade amplification needed to treat hearing loss effectively. True hearing aids are programmed by professionals based on detailed hearing tests, while AirPods provide only general sound amplification.

For mild hearing difficulties or occasional use, AirPods may offer some benefit, but for consistent or significant hearing loss, proper hearing aids are the better and safer choice.

Can hearing aids cause vertigo?

Hearing aids generally do not cause vertigo, but some users may experience dizziness or balance issues when first adapting to them. This is often related to the ear canal being slightly blocked by the hearing aid, which can affect pressure and sensation in the ear. In rare cases, an improper fit or sudden changes in hearing can also contribute to feelings of imbalance.

If vertigo or dizziness occurs, it’s important to consult with your audiologist to adjust the device or check for other underlying causes. Proper fitting and gradual adaptation usually help minimize these side effects.

Can I get a hearing aid for free?

In some cases, it is possible to get hearing aids for free or at a reduced cost, depending on your circumstances and location. Certain government programs, veterans’ benefits, and nonprofit organizations offer assistance to individuals who cannot afford hearing aids. For example, veterans in the U.S. may receive hearing aids through the Department of Veterans Affairs, and some state programs provide support for children or low-income adults.

Additionally, charitable organizations and community health clinics sometimes run hearing aid donation programs or offer sliding-scale fees. It’s important to research local resources and speak with a hearing care professional to learn about available options.

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