Can you hear me

Understanding Normal Hearing

Human hearing is a complex sensory system that allows us to detect and interpret sound waves. Normal adult hearing ability is measured in hertz (Hz) for frequency and decibels (dB) for loudness. Most adults can hear sounds ranging from 20Hz (very low frequencies like distant thunder) to 20,000Hz (very high frequencies like a whistle), though this upper range decreases with age.

How Hearing Works

Sound enters the ear canal and causes the eardrum to vibrate. These vibrations pass through three tiny bones in the middle ear, then travel to the inner ear where the cochlea converts sound vibrations into electrical signals. The auditory nerve transmits these signals to the brain, which interprets them as the sounds we perceive. Damage at any point in this pathway can result in hearing loss.

Prevalence of Hearing Loss

Hearing loss is surprisingly common and often undiagnosed. One in three adults over 65 experiences hearing loss, but younger adults are increasingly affected. Noise exposure, certain medications, infections, and genetic factors all contribute to hearing problems. Many people do not realize their hearing has declined because the change occurs gradually.

Types of Hearing Loss

Sensorineural hearing loss results from inner ear or auditory nerve damage and is the most common type. Conductive hearing loss occurs when sound cannot reach the inner ear due to middle ear problems. Mixed hearing loss combines both types. Identifying the type through audiological testing is essential for appropriate treatment.

Hearing Evaluation and Testing

An audiologist can perform comprehensive hearing tests to measure your specific hearing abilities across different frequencies and volumes. Tests are painless and take 30-60 minutes. If hearing loss is detected, audiologists can recommend appropriate interventions and assistive devices tailored to your needs and lifestyle.