What to consider when dealing with plumbing in a new bathroom. Learn how to add a bathroom to your home, including plumbing and drainage tips with this free home improvement video. Expert: Dave Pollack. Bio: Dave Pollack owns Dave's Handyman service in Cottonwood, Arizona.
Like TLomon mentioned the tobacco industry is part of a well known conspiracy of the past. The tobacco industry was behind a PR campaign that counteracted scientific evidence which linked cigarette smoking to lung cancer.
How smoking causes lung cancer. Doctors believe smoking causes lung cancer by damaging the cells that line the lungs. When you inhale cigarette smoke, which is full of cancer-causing substances (carcinogens), changes in the lung tissue begin almost immediately. At first your body may be able to repair this damage.