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People who are profoundly deaf and candidates for cochlear implant surgery often have musical hallucinations, hearing symphonies and concerts in their heads. These hallucinations disappear after the implant, which allows them to hear speech.

The ear is the most sensitive sensory organ, capable of detecting displacements at the sub-angstrom level, which is smaller than the diameter of a hydrogen atom.

Outer hair cells in the inner ear can move at audio frequencies up to 20,000 hertz in humans and up to 100,000 hertz in bats, showcasing the incredible design of the auditory system.

The best treatment option for tinnitus currently is a cochlear implant, which improves peripheral function and allows the brain to recalibrate, effectively reducing symptoms for many patients.

Genetic testing for hearing loss only provides definitive answers in 50% of cases. The other 50% often result in variants of unknown significance, which are common but not well understood.

The human organ of hearing, the cochlea, is incredibly small, about the size of Lincoln's upper face on a penny, and contains only about 140 microliters of fluid, equivalent to three raindrops.

Hidden hearing loss can occur even if standard audiometric tests show normal results. This happens when synapses connecting sensory cells to neurons are damaged by loud sounds, leading to issues like tinnitus.