This article presents a review on the association between certain lifestyle characteristics and the risk for lung cancer in humans, using information derived primarily from epidemiological studies. Emphasis will be placed on more recently identified risk factors such as exposure to indoor air pollutants, psychosocial and behavioral influences, diet preferences, and fat intake. More traditional lifestyle factors such as cigarette smoking, occupation, and exposure to outdoor air pollutants will not be reviewed since their association with an increased risk for human lung cancer has been relatively well characterized and extensively reported. Evidence to date suggests that the indoor environment, life's events, and food choices may play a potentially important, albeit varying, role in the etiology of human lung cancer.

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