RESUMO
Some Bemorheogical indexes of the middle-aged persom and the ages of "mental work pattem" health state were compared with that of the middle aged persen and the aged in general health in the paper, The authors found the values of the former were higher than that of the latter in varied degrees. Except the both sexes hematocrit and the male's erythrocyte sedimentation rate, the other inedxes of the both groups showed very significant differences. According to the cpidemiological data which showed the incidences of ischemic cardio-cerebrovascular diseases in the mental works were higher than that in the physical labourers, it is suggested that the differences of hemorheological characterislics in the both may be the one of the causes. The authors suggest that it should pay atterntion to health states of the middle aged person and the aged who had elementary normal conclusion in physical examination but they had abnormal high values of one or some hemorheological indexes.