・Aphasia may be exacerbated by frailty and disuse of language function.
・Language sub-functions related to the core symptoms were fragile and could easily worsen. It was suggested that these sub-functions may be difficult to recover even if speech language therapy is resumed.
・For the prevention of the language function deterioration, it is necessary to regularly evaluate language function and daily activities, and to build a continuous follow-up system in which medical care, government, and local communities cooperate.
