Radon Therapy

"In what seems like a throwback to the days when quack medical products included radium, causing people's jaws to fall off from cancer, some people are once again turning to a carcinogenic radioactive element for their health. This time it's not radium but radon, an alpha particle emitter, and second only to smoking as a cause of deaths from lung cancer. The benefit, they say, is pain relief, or treatment of high blood pressure, or — in the ultimate irony — treating cancer. It is not an approved therapy in the United States (though it is in some other countries), so the playing field is wide open for anyone who wants to sell it, and anyone who wants to try using it." (link)