RSS is a way to tell your favorite websites to let you know when they have new content. RSS also allows you to access this content on your own timetable. RSS does not clog up your email.
First, you pick an RSS Feed Reader. A couple of free and easy to use ones are Google Reader and Bloglines.
Second, when you see an RSS icon, click it. The page that comes up will give you everything you need to enable the content you want to come to you.
For a simple and quick video description of how RSS works, view the video at the bottom of this page.
Do not show me this again:
More people die from lung cancer than any other type of cancer. In 2004,* lung cancer accounted for more deaths than breast, prostate, and colon cancer combined. The most important thing you can do to prevent lung cancer is to not start smoking or to quit if you currently smoke.
In 2004* (the most recent year for which statistics are currently available),
In the United States, about 90% of lung cancer deaths in men and almost 80% of lung cancer deaths in women are due to smoking. People who smoke are 10 to 20 times more likely to get lung cancer or die from lung cancer than people who do not smoke. The longer a person smokes and the more cigarettes smoked each day, the more risk goes up.
Smoke from other people's cigarettes ("secondhand" smoke) causes lung cancer as well. The 2006 Surgeon General's Report, The Health Consequences of Involuntary Exposure to Tobacco Smoke, concludes there is no safe level of secondhand smoke for nonsmokers.
Radon gas causes lung cancer and is sometimes found in people's homes. Radon is an odorless, colorless gas that comes from rocks and dirt and can get trapped in houses and buildings. Examples of substances found at some workplaces that increase risk include asbestos, arsenic, and some forms of silica and chromium. For many of these substances, the risk of getting lung cancer is even higher for those who also smoke.
The risk of lung cancer may be higher if a person's parents, siblings (brother or sister), or children have had lung cancer.