PROBLEM TO BE SOLVED: To provide a material effective for improving nerve activity in the brain or preventing or improving brain dysfunction. SOLUTION: A brain glucose metabolism activator, a brain nerve cell activator, a brain function lowering inhibitor, a brain function improving agent, or a preventive or ameliorating agent for a brain function disorder, which contains an ethanol extract of camagulock as an active ingredient. [Selection diagram] None【課題】脳内神経活動の向上又は脳機能障害の予防若しくは改善に有効な素材の提供。【解決手段】カマグロックのエタノール抽出物を有効成分とする脳グルコース代謝活性化剤、脳内神経細胞賦活化剤、脳機能低下抑制剤、脳機能向上剤、又は脳機能障害の予防若しくは改善剤。【選択図】なし
