摘要:Abstract This study was carried out with the aim of investigation on a relationship of obesity as a risk factor for MCI so that in case of proving such relationship weight control management could be influential in reducing the number of elderly people stricken to Demans. The present research is of the scientific-comparative type and was performed on 150 middle-aged people from Tabriz. Data was obtained via BM index and MMSE test. In order to analyze the obtained data, t-student test and single-way variance analysis were employed. This study showed that among female middle-aged people including three weight groups, there was a meaningful difference. Obese men and women as compared to two groups “overweight” and “normal weight” and women having overweight compared to women having normal weight are more subjected to the minimal cognitive impairment. Among middleaged men, there was no significant difference between the group having overweight and the obese group.