smokers also seem to be more honest about themselves than nonsmokers. As David Krogh describes it in his treatise Smoking: The Artificial Passion, psychologists have what they call “lie” tests in which they insert inarguable statements—“I do not always tell the truth” or “I am sometimes cold to my spouse”—and if test-takers consistently deny these statements, it is taken as evidence that they are not generally truthful. Smokers are much more truthful on these tests.
