CORRESPONDENCE Re: Personality and the Risk of Cancer

Nakaya et al. (1) presented a large prospective study demonstrating that personality does not play a substantial role in the causation of cancer. As the authors concluded, the association be-tween neuroticism and prevalent cancer may be a consequence, rather than a cause, of cancer diagnosis or symptoms. This result obviously contrasts with those of other studies [e.g., (2)] showing that chronically depressed individuals, especially among the elderly, are at in-creased risk of developing cancer. We have obtained laboratory results from immunologic evaluation of can