Generate text that refutes this claim: Exposing non-smokers to second-hand smoke goes against their rights.  The Universal Declaration of Human Rights (a list of rights to which the United Nations has declared that all human beings should be entitled) states that "Everyone has the right to a standard of living adequate for the health and well-being of himself and of his family"1. More than 50 studies carried out worldwide have found that people are at an increased risk of lung cancer if they work or live with somebody who smokes2. Given these very serious health risks, it goes against people's human rights to be exposed to second-hand smoke when they have not chosen to breathe it in. To avoid this happening, smoking should be banned in public places, so that non-smokers can be sure that they will not have to breathe in second-hand smoke.  1 The Universal Declaration of Human Rights', General Assembly of the United Nations,   2 'Tobacco Smoke and Involuntary Smoking', World Health Organisation, Vol.83, 24 July 2002,
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It is very difficult to properly scientifically measure the risk for non-smokers of being exposed to second-hand smoke. To do a proper experiment, scientists would need to find a large group of people who had never been exposed to cigarette smoke before, split them into two groups, and then systematically expose one group to second-hand smoke for a period of time while the other group stayed smoke-free. They would then have to wait and see if more of the group exposed to second-hand smoke developed lung cancer than the other group over their lives. This would be a very expensive and time-consuming experiment. Besides this, it would be very difficult to find people who had never breathed in cigarette smoke and keep half of them that way for their whole lives for comparison. Because of these difficulties in the ideal experiment, scientists often just use questionnaires, asking people to try and remember how many cigarettes the person they live with smokes in a day, for how many hours a day they are exposed to smoking, etc. These kinds of studies are far from precise, since human memory is not very accurate, and so no truly scientific conclusions can be drawn1. Therefore, it is not a fact that non-smokers exposed to the smoke of others are at a serious health risk, so the proposition cannot say that having to sometimes be around other people who smoke goes against non-smokers' human rights.  1 Basham, Patrick, and Roberts, Juliette, 'Are Public Smoking Bans Necessary?' Democracy Institute, Social Risk Series Paper, December 2009,