In SilicoHighlightedMolecular Hydrogen as an Antioxidant and Radioprotector: Mechanistic Insights from Monte Carlo Radiation-Chemical SimulationsMHID-6447318PMID: 410089612025AntioxidantsSumaiya Akhter Ria, Jintana Meesungnoen, Jean-Paul Jay-Gerin(1) Background: Water, comprising about 70–80% of cellular mass, is the most abundant constituent of living cells. Upon exposure to ionizing radiation, water undergoes radiolysis, generating a variety of reactive species, including free radicals and molecular products. Among these, hydroxyl radicals (•OH) are particularly damaging due to their very high reactivity and their capacity to induce oxid