To elucidate the correlation between lifestyle ( health practices ; sleeping hours, working hours, breakfast, eating between meals, salt, balance in diet, exercise, drinking, smoking) and great stress we made a survey for middle and advanced aged residents in a town for stress management and mental health promotion. The results obtained were as follows. 1) Univariate analysis The result obtained by using univariate analysis revealed that health practices. positively related to great stress ( i. e., in which odds ratio was greater than 1 ) were long working hours (≧ 9 hours ), hanvin no breakfast, eating between meals, no restriction on salt, poorly unbalanced diet and taking no regular exercise, whereas health practice , negatively related to great stress (i. e., in which odds ratio was smaller than 1 ) was too much drinking. In males the health practices, positively related to great stress ( i. e.. in which odds ratio was greater than 1 ) were long working hours, having no breakfast, eating between meals, and poorly balanced diet , whereas in females were long working hours, having no breakfast, eating between meals, no restriction on salt and taking no regular exercise. 2) Multivariate analysis The result obtained by using multivariate analysis to control the confounding factors revealed that health practices, positively related to great stress ( i. e., in which relative risk was greater than 1) were long working hours, eating between meals, poorly unbalanced diet and taking no regular exercise. In males the health practices, positively related to great stress (i. e., in which relative risk was greater than 1 ) were eating between meals and poorly unbalanced diet, whereas in females were long working hours and taking no regular exercise. These results reveal that healthy lifestyle prevents great stress and promotes mental health.

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For the purpose of elucidating the factors promoting successful aging we conducted a survey in middle and advanced age, and analyzed the correlation between occurrernce of life events and subjective feeling of life satisfaction. The results obtained by multivariate analysis were as follows. 1)The life events significantly related to The life events injury/disease, troubles with superior officers, debts, disease of family member, restructure of home, divorce, discharge, troubles with blood relatives and personal success. The life events improved subjective feeling of life satisfaction were personal success, while the life events deteriorated subjective feelig of life satisfaction were discharge, divorce, troubles with superior officers, faithless love, limited divorce and troubles with blood relatives. 2)In males the life events significantly related to subjective feeling of life satisfaction were injury/desease, troubles with superior officers, debts, divorce, disease of family member, homecoming, discharge, death of spouse, troubles with blood relatives, limited divorce and personal success. The life events improved subjective feeling of life satisfaction were homecoming, while the life events deteriorated subjective feelig of life satisfaction were discharge, divorce, death of spouse, limited divorce, missed of one's children, inconstacy and troubles with blood relatives. While in females resignation, restructure of home, troubles with superior officers, failure of firm, sexual disorde, debts and disease of family member were significantly related to subjective feeling of life satisfaction. The life events improved subjective feering of life satisfaction were personal success, while the life events deteriorated subjective feeling of life satisfaction were failure of firm, resignation and troubles with superior officers.

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