Lung cancer’s deadly secret
Every week more than 4,000 Americans are newly diagnosed with lung cancer and about 3,000 Americans die from the disease. Researchers have now uncovered a hidden factor that makes this deadly disease so hard to treat.
Think you know how bad cigarette smoke is for your health? Swallow this fact: Every puff of a cigarette contains about 4,700 different chemicals and 100 trillion free radical molecules. These reactive substances damage lung tissue by chemically reacting with DNA, cell membranes and other molecules in the lung.