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Joanne Selburner was living in Seattle when it started to get loud.

I couldn't talk to you like this in the backyard and be heard.

When she moved to the area in 2010, the nearby highway had just been resurfaced.

But over time, the highway surface wears away and the sound of the tires on the roadway

get louder and louder and louder.

Joanne was experiencing noise pollution,

which is unwanted sound that over time can cause harm.

She moved to Bainbridge Island for some quiet. But as a

longtime health reporter, she couldn't shake this growing concern about the

impact of loud and persistent noises on human health. The noise pollution that I'm most concerned about is the

everyday noise pollution of gas-powered leaf blowers, of schools that are right next

to elevated train tracks in New York City. of highways that go through the middle of cities. A lot of it is invisible or you're

habituated to it and you don't even know it's there. You might not notice your

blood pressure going up when loud things are happening or you might not notice that you're your

stress stress hormones are higher, but they are.

...