May 04, 2012 by: S. D. Wells

Shocking new research reveals that a specific type of lung cancer many smokers develop comes from tiny tears in their lung tissue caused by microscopic glass fibers, also known as glass wool, found in many conventional cigarette filters. These rips in the epithelial (soft) tissue fuel the development of tumors and cancerous cells due to the constant overload of toxins, namely pesticides, nicotine and ammonia, contained in commercial cigarette smoke.
Thanks to absolutely no regulations regarding the ingredients used for manufacturing cigarettes, smokers are susceptible to multiple forms of lung disease.

http://www.naturalnews.com/035766_cigarettes_glass_fibers_lung_damage.html#ixzz1uKxSkzis