Most people couldn't accurately guess the decibel level of their own bedroom at night. Or their office. Or the restaurant they go to every Friday. And yet research from the WHO and dozens of universities keeps reaching the same conclusion: chronic noise exposure quietly damages sleep, focus, cardiovascular health, and hearing — and most of us are exposed to far more of it than we realize.

This episode is about the noise you stopped noticing.

We talk about the science of decibels and why the scale is logarithmic in ways that surprise people. We discuss what real-world noise levels look like in apartments, gyms, concert venues, dance studios, and open-plan offices — and what the research actually says about the threshold where damage starts. We cover the difference between hearing loss and tinnitus, why both are perishable in opposite directions, and what musicians, soldiers, and dance teachers have already figured out about ear protection that most of the population hasn't.

The episode also walks through practical territory: how to measure ambient noise with just a smartphone, when modern musician earplugs make sense, how to audit your sleep environment for noise issues, and why hearing tests in your 30s tell you more useful information than ever before.

A featured resource is the collection of free browser-based audio and hearing tests at https://pickheadphones.com/ — covering decibel measurement, frequency sweeps, hearing range tests, and headphone diagnostics.

Your ears don't grow back. Worth taking care of them.