Second hand smoke harmful and conducive to genetic abnormalities


Smoking is injurious for health. I bet! Everybody knows about this fact. But still, smokers either do not agree or are in a state of denial.  Smoking is of two kinds, active smoking and passive smoking. As name depicts a person who smoke regularly or occasionally is an active smoker, whilst a person who doesn’t smoke at all but inhale smoke involuntarily is a passive smoker.  Passive smoking is also known as Second hand smoke or environmental tobacco smoke (ETS).

Various studies in past have linked passive smoking with serious diseases including  tuberculosis, cardiovascular disease, pancreatic cancer, diabetes mellitus, respiratory infections, kidney disease, acute stroke, acute heart attack and atherosclerosis. That means, if you don’t smoke, but hang out with your friends who smoke, you are not at all safe, you have high chances of getting diseases. According to Centers for Disease Control and Prevention, passive smoking affects an estimated 126 million nonsmokers in homes, workplaces and public areas in the United States.

A new study found that even low levels of exposure to cigarette smoke (passive smoking) can alternate the function of genes implicated in lung diseases.


About the study
The study is considered to be the first to demonstrate that passive smoking and infrequent tobacco smoking can affect the body at a genetic function level. Researchers at Weill Cornell Medical College of Cornell University and Presbyterian Hospital examined 121 healthy people for levels of nicotine and cotinine (a chemical produced in the body as nicotine is metabolized) in urine samples, which are markers of cigarette smoke in the body. Based on the levels of the markers, participants were grouped into three different categories, nonsmokers, active smokers and low exposure smokers.

Each participant’s entire genome was scanned to find...

out which genes were either activated or deactivated in the cell linings of the airways.

Findings of the study
The investigators found that

  • Extremely low levels of exposure to cigarette smoke produced genetic abnormalities in the cells of non smokers and occasional smokers
  • “The genetic effect is much lower than those who are regular smokers, but this does not mean that there are no health consequences.”
  • Certain genes within the cells lining the airways are very sensitive to tobacco smoke, and changes in the function of these genes are the first evidence of ‘biological disease’ in the lungs.

The study was published in the American Journal of Respiratory and Critical Care Medicine.

The study revealed that how smoke can be harmful for the non smokes and the reason is cigarettes contain more than 4,000 chemicals of varying toxicity including 43 known carcinogens. They work like poison for the body, if inhaled. For more details about the chemicals of cigarette and associated health risks please visit the link Cigarette smoking is injurious for your health.  I look forward to see the steps taken by the government to ban smoking at public places. This might help reducing the exposure of smoking and associated health risks.

Source: medicalnewstoday


11 Responses

  1. Either the author of this article did not carefully read the study he is writing about or he is misrepresenting what it says. That’s not all his fault though: In my opinion the authors of the study themselves helped in that misrepresentation. . . . . . . .

    When you actually read the study you will find, buried in a single sentence on page six the fact that of the 36 subjects in the “low exposure” group… TWENTY EIGHT were actually SMOKERS! They all admitted to some degree of smoking, maybe light, maybe occasional, maybe just five a day, maybe none for the last few months or years, but 28 of the 36 that the author of this article thinks were “passive smokers” were actually SMOKERS. . . . . . . .

    So why would they be presented to and in the media as nonsmokers just “exposed to low levels of tobacco smoke” ? Simple: the fear that such a statement causes helps to support smoking bans. Ever since the World Smoking And Health Conference convened in 1975 under Sir George Godber, the antismoking movement has believed that the best way to eliminate smoking is by playing up fears of being around smokers. It’s simple behavioral conditioning: by limiting smoking as much as possible, by making it uncomfortable, difficult, inconvenient and expensive to smoke they are able to condition people’s behavior just as surely as giving rats electric shocks in cages. . . . . . . .

    Except that we’re supposed to be human beings, and this is NOT how governments should be interfering in our lives. . . . . . . .

    Michael J. McFadden,
    Author of “Dissecting Antismokers’ Brains”

  2. According to the response meter on this page there have been ten responses made in the past three months.

    However, NONE of them are visible to me other than my own single posting.

    Is your site following the “shadow-banning” censorship technique of fooling posters into thinking that their posts have been published for general public consumption when in reality they can only be seen by the poster? That’s a particularly nasty form of censorship that I have seen practiced on only two other sites: The Topix news boards and the site of the Argus News Leader.

    Are you willing to comment on this?

    Mchael J. McFadden

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