Tinnitus Explained in 60-Seconds

By Dr. Jennifer Gans

Most people think tinnitus means something is wrong with the ear.

But tinnitus is actually a beautiful example of how the brain works—and the kinds of errors it can make, especially during times of stress.

Your brain is constantly predicting the world around you. In many ways, it is a prediction machine. It expects certain signals from your senses—sounds, sights, smells, tastes, and touch. When those signals change, the brain doesn’t like uncertainty, so it starts searching.

In the auditory system, if the brain expects sound at certain frequencies but the signal becomes weaker—often from subtle changes in hearing—the brain turns up its internal sensitivity in an effort to find the missing sound.

And in that search, neural activity that was always present suddenly becomes noticeable.

That perception is tinnitus.

The sound itself isn’t dangerous. It is simply the brain becoming aware of one of its own internal signals. The difficulty arises when the brain mistakenly tags that signal as a threat and pushes it into conscious awareness so it can be monitored.

Something that should have stayed quietly in the background—outside of awareness—suddenly takes center stage.

·      Now attention locks onto it.

·      The emotional centers of the brain activate.

·      And the brain keeps checking the signal, which can make the sound feel louder and more intrusive.

But when the brain learns that the signal is harmless, something remarkable happens.

·      Attention relaxes.

·      The brain stops monitoring it.

·      And the sound fades back into the background of awareness—just like the hum of a refrigerator or distant traffic outside your window.

So tinnitus isn’t really about the ear.

It’s about helping the brain understand that this sound no longer deserves center stage.