A dementia information output system (10) is provided with a measurement unit (110) that measures body movements of a user, an acquisition unit (120) that acquires body movement measurement results and specifies the sleep time period of the user each day on the basis of the measurement results, an identification unit (170) that identifies whether or not an electronic device used by the user is turned on, a determination unit (140) that determines the likelihood that a user has developed mild dementia, etc., on the basis of the frequency of forgetting to turn devices off, i.e. the frequency of occurrence of days when the identification unit (170) identifies that an electronic device is turned on during the sleep time period specified by the acquisition unit (120), and an output unit (160) that outputs dementia information indicating the likelihood determined by the determination unit (140).失智症資訊輸出系統(10)具備：測定部(110)，其測定使用者之身體動作；取得部(120)，其取得身體動作之測定結果，且基於測定結果而於每天特定出使用者之睡眠時段；判別部(170)，其判別由使用者使用之電器是否為電源接通狀態；判定部(140)，其係基於由上述判別部(170)判別為在取得部(120)所特定之睡眠時段內電器為電源接通狀態之日之發生頻率即忘記關閉頻率，判定使用者患有輕度失智症等之可能性；及輸出部(160)，其輸出表示以判定部(140)判定之可能性之失智症資訊。
