Tobacco smokers think that antismoking activists misrepresent research to make smoking seem more dangerous than it is. For example, smokers argue that many of the chemicals found in cigarette smoke, such as lead and arsenic, are found in much higher concentrations in so called healthy foods, such as wine and fish. Furthermore, smokers contend that cigarette opponents fail to acknowledge the role smoking has had on reducing the incidence of a number of diseases, such as, Alzheimer disease, Parkinson disease, depression, pain, and obesity etc.