Abstract
This research investigated two issues on smoking risk in controversial argument of previous academic journals. First issue is smokers' evaluation of the cumulative nature on the smoking risk. Some authors insisted that smokers overestimate the cumulative nature of the smoking risk and, as a result, underestimate the short term smoking risk. This research shows the tendency that both smokers and nonsmokers do not overestimate the cumulative nature of the smoking risk. however, smokers underestimate the short term smoking risk than nonsmokers. Second issue is smokers' recognition of the qualitative nature on the smoking risk. This research clarified that smokers and nonsmokers alike recognize the seriousness of getting lung cancer. These result partly support assertion that smokers are smoking with fully understanding on the smoking risk, but partly did not.
