Abstract
A work stressor of the IT project is high, thus the mental health problem has become a serious risk. We achieve this tasks maintaining psychological health of the members which they feel stress but easily feel refreshed when they take a rest. To do that, the basic and simple concept and the preventive measure of disease of the mind to deal with the mental health problem on site is necessary. At this time, we have relatively little awareness of the mental health of ourselves to the physical health. In addition, we haven't trained and acquired about the knowledge and the skills to deal with this problem. In this article, I would discuss from the viewpoint of the comparison of the condition of the physical health with the mental health, the comparison of the mechanism of maintaining the physical health with the mental health, and the "Brain" science which generates the human heart and feels stress.