Doctor: Being overweight has long been linked with a variety of health problems, such as high blood pressure and heart disease. But recent research conclusively shows that people who are slightly overweight are healthier than those who are considerably underweight. Ttherefore, to be healthy, it suffices to be slightly overweight. The argument's reasoning is flawed because the argument ['does not take into account the fact that appropriate weight varies greatly from person to person', 'ignores medical opinions that tend to lead to a conclusion contrary to the one drawn', 'never adequately defines what is meant by "healthy"', 'mistakes a merely relative property for one that is absolute']