マラソンやウルトラマラソンと大腸がんの関連性が示唆される
激しい持久走トレーニングは、一部のランナーにおいて大腸がんのリスクを高める可能性があることが新たな研究で示唆された。過度の運動が消化器系に与える生理的ストレスや血流の変化が、がん発生につながるメカニズムの一因となる可能性があるという。
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