Types of hearing loss, risks and prevention

If your hearing loss is starting to affect your everyday activities, talk to your doctor about a hearing aid. And before you balk, consider this: The newest models are so sleek that

they're practically invisible. "The latest technology effectively reduces background noise while simultaneously enhancing the ability to hear speech more clearly," says Ellen

Finkelstein, chief audiologist at East Side Audiology in New York. "People can also hear voices that would be completely inaudible otherwise." For severe hearing loss, you may want

to consider cochlear implants. Whereas hearing aids amplify sounds so that damaged ears can detect them, cochlear implants bypass damaged parts and directly stimulate the auditory nerve.

RED FLAGS: People with kidney or heart disease have a higher than average risk of developing age-related hearing loss. Researchers think that may be because poor kidney function leads to the

accumulation of toxins that can damage nerves in the inner ear. And cardiovascular disease can decrease blood flow to the inner ear. "Improving kidney or cardiac function won't

reverse hearing loss, but it can prevent it from worsening," Okun says. "I recommend getting a formal hearing test if you have either condition." The reverse may be true, as

well; if you have hearing loss, check your kidney and cardiovascular health. 2. YOU HAVE A FEELING OF FULLNESS IN YOUR EARS. WHY IT HAPPENS: Excess mucus from an infection or allergy can

block the eustachian tube, the small canal that connects the throat to the middle ear and regulates airflow, particularly when you swallow or yawn. Besides feeling fullness and muffled

hearing, you might also experience popping, pain or tinnitus (ringing in the ears), or have difficulty maintaining balance. A buildup of earwax can cause that feeling of fullness, too. HOW

TO FIX IT: Most eustachian tube dysfunctions improve when the infection goes away, says otolaryngologist David S. Haynes, Cochlear Implant Program director at Vanderbilt University Medical

Center in Nashville. If not, a doctor can prescribe decongestants and antihistamines to help reduce inflammation. As for earwax, any health care provider can remove it with a suction device,

irrigation tool or nasal spray, Haynes says. Don't try to do it yourself, though, as you can easily damage your eardrum.   RED FLAGS: Hearing loss with fullness that's accompanied

by significant pain could be otitis externa, or swimmer's ear, an infection of the ear canal that carries sound to the eardrums. The infection is typically caused by water in the ear,

which breaks down the skin and provides a breeding ground for bacteria. Otitis externa is usually treated with ear drops that contain an antibiotic. 3. YOUR HEARING LOSS IS SUDDEN. WHY IT

HAPPENS: Swelling or fluid buildup as a result of a virus or ear infection can affect hair cells and nerves, as can taking high doses of certain medications, including aspirin, intravenous

antibiotics, chemotherapy drugs and diuretics. HOW TO FIX IT: "If an audiogram shows nerve injury, hearing can be recovered if steroids are given within 72 hours of the onset of hearing

loss," Okun says. Steroids reduce inflammation and prevent swelling of the auditory nerve, which, if left untreated, can cause permanent hearing loss. Loss of hearing because of use of

certain drugs — a condition called ototoxicity — requires an immediate change in your medication if possible.