With all the stuff that's been proven to harm and kill us, it's amazing that any of us is alive.

Now, scientists are reporting that so-called "third-hand smoke" -- the invisible remains of cigarette smoke on carpeting, clothing, furniture and other surfaces -- may be a huge health hazard.

Researchers found that the nicotine in third-hand smoke reacts with the ozone in indoor air and surfaces like clothing and furniture, to form new nasty pollutants.

And, we're all exposed to this stuff. Babies crawl on the carpet. We take naps on the sofa and eat food tainted by this third-hand smoke.