This 2015 review explores melatonin's multifaceted role in mitigating brain inflammaging—a chronic, low-grade inflammation contributing to aging and neurodegeneration. Melatonin functions as a direct and indirect antioxidant, modulates mitochondrial function, and suppresses proinflammatory pathways by inhibiting NADPH oxidase, inducible nitric oxide synthase, and proinflammatory cytokines. It also enhances circadian rhythm
