Discover the miracles of your auditory system with Earvangelism! Join psychoaudiologist Priscilla Leigh for tales of ear wonders—stories, science, and quirky facts that prove your ears are truly mind boggling. From vocal control to emotional regulation to gut function, each episode reveals why ears are the best thing since sliced bread. Tune in to discover how auraculous you are!
Deep in your cochlea, alongside the cells that detect sound, sits a resident population of immune cells called macrophages. They roam around patrolling for threats, clearing debris, managing inflammation. Every major organ has its own version. The brain's is called microglia. In this mini episode, I explain a striking discovery: that the genetic program running the ear's immune cells and the brain's are exactly the same, which raises the question of whether hearing loss and neurodegeneration are two expressions of one upstream cause!
23 Sept 2026
Your Ear: The Body's Most Powerful Battery
Somewhere in your head, right now, there's a battery: a genuinely unusual electrical charge your inner ear builds and maintains for your entire life, just to make sure a whisper never gets missed. In this episode: what that battery is, why it's stranger than almost anything else in your body, and why a truly brutal week at work might actually leave a trace on what you hear.
16 Sept 2026
The Dancing Cells Inside Your Ear
There are cells inside your ear, physically changing shape thousands of times a second, stretching and contracting perfectly in time with whatever sound is around you.
In this episode of Earvangelism, I break down outer hair cells: the only sensory cells in your body that work backwards, turning an electrical signal back into movement, and using that movement to amplify the very sound that triggered them. This mind-boggling biology is exactly what lets us test a newborn baby's hearing without needing a single word from them.
Nowhere else in the body will you find anatomy quite this wild. Tune in!
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