How serious is youth vaping? Irreversible lung damage serious. One in ten kids vape serious,

which warrants a serious conversation from a serious parental figure, like yourself. Not the

seriously know-it-all sports dad or the seriously smart podcaster. It requires a serious

conversation that is best had by you. No, seriously.

The best person to talk to your child about vaping is you.

To start the conversation, visit talk about vaping.org.

Brought to you by the American Lung Association and the Ad Council.

Welcome to Brain Stuff, a production of IHeartRadio.

Hey, Rainstaff.

Lauren Vogelbaum here.

In 1963, an hour-long documentary aired on the television program, CBS Reports.

In it, a serene, articulate, middle-aged woman sat in her den and proposed that it might not be such a good idea to spray 900 million pounds of an insecticide called DDT on crops, roadsides, and lawns across the country every year.

She pointed out that nobody knew what the long-term consequences might be for humans or other animals.

She was the American marine biologist and conservationist Rachel Carson, who had just published

the book Silent Spring, a work of investigative science that helped start the environmental

movement in the United States.

Offering an opposing point of view in the documentary was a spokesperson from the chemical company American Sinamid by the name of Robert White Stevens.

Clad in a lab coat and sporting thick black-rimmed glasses, he said that Carson was wrong, that smart scientists knew better, and that man was well on the road to mastering nature with chemicals like this.

Rachel Carson was a country girl. She was born on May 27th of 1907 in Springdale, Pennsylvania,

where she grew up on a 60-acre farm, that's about 24 hectares. There, she wandered the fields,

testing her knowledge of the animal calls and plants her mother taught her to identify.

Life wasn't that far from the scenes described in her favorite books,

...