PROBLEM TO BE SOLVED: To provide novel anti-mental exhaustion agents that contain as an active ingredient a component extracted from Ganoderma lucidum with an aqueous solvent and/or an organic solvent and can recover mental fatigue, to provide foods (health supplements) and bittering agents using the anti-mental exhaustion agents, and to provide production methods thereof.SOLUTION: The present invention provides an anti-mental exhaustion agent characterized by containing as an active ingredient a component extracted from Ganoderma lucidum with an aqueous system solvent and/or an organic system solvent.SELECTED DRAWING: None【課題】霊芝(Ganodermalingzhi)から水系溶媒及び/又は有機系溶媒で抽出した成分を有効成分として含有し、精神的疲労の回復をすることができる新規の抗精神疲労剤、該抗精神疲労剤を用いた食品(健康補助食品)、苦味料、並びにそれらの製造方法の提供をすること。【解決手段】霊芝から水系溶媒及び/又は有機系溶媒で抽出した成分を有効成分として含有することを特徴とする抗精神疲労剤。【選択図】なし