Hookah vs Cigarettes

-"Study: Hookah No Safer Than Cigarettes, Just Differently Dangerous"
-Amina Khan, Los Angeles Times
-April 19, 2013
-http://www.latimes.com/news/science/sciencenow/la-sci-sn-hookah-cigarette-smoking-cancer-shisha-20130419,0,7032333.story
People who smoke hookah try to argue that it is safer than cigarettes, such as the forty percent of college students who have admit to doing it and said they believe it is safer. Hookah smokers believe that since it is water based, the tobacco and other toxic ingredients will be filtered out. Contrary to their belief, it does not filter out anything and they probably inhale more tobacco from hookah than cigarettes. A study in San Francisco tested eight men and five women for four days of smoking cigarettes (about eleven per day), and another four days of smoking hookah (three sessions per day). Even though more nicotine was found in the participants' blood when smoking cigarettes, they could still get addicted to hookah. However, almost three times as much carbon monoxide was found in their breath for smoking hookah, and higher levels of benzene in their urine (linking to leukemia).