Alzheimers

a progressive form of presenile dementia that is similar to senile dementia except that it usually starts in the 40s or 50s; first symptoms are impaired memory which is followed by impaired thought and speech and finally complete helplessness

初老期認知症の進行性の形態で、老年認知症に類似するが通常40代または50代で発症するもの；初期症状は記憶障害で、その後に思考や言語の障害が続き、最終的には完全な無力状態となる