This invention generally, regards the field of preventive of the decline of health of the brain, protection of the brain, maintenance and acknowledgment of acknowledgment function, and acknowledgment obstacle. It is possible to protect the nerve cell of the brain. In addition, it is possible also to increase acknowledgment ability.< Selective figure > It is not本発明は一般に、脳の健康、脳の保護、認知機能の維持、認知の減退の予防、及び認知障害の分野に関する。脳の神経細胞を保護することができる。また、認知能力を増加させることもできる。【選択図】 なし