Radon is a radioactive gas that results when uranium breaks down.
It can be in the soil beneath and around your house; it enters your home through cracks and openings.
Exposure to radon is the second leading cause of lung cancer after smoking, according the U.S. Environmental Protection Agency.
You can test for radon yourself by buying a radon test kit or monitor for about $30 at home improvement stores.
And you'll see personalized content just for you whenever you click the My Feed .
SheKnows is making some changes!