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The resulting neuronal damage manifests as a spectrum of cognitive, psychiatric, and motor dysfunctions, with long-term consequences for brain structure and function

The routes of potential exposure to these chemicals are clearly not solely the preserve of the military environment, thus associated symptoms such as fatigue are prevalent across parts of society

A 2019 review in Nutrients examining NAD+ precursor safety in human clinical trials found oral NMN and NR well-tolerated at doses up to 1,000 mg/day with no serious adverse events reported

SS-31 (elamipretide) , a mitochondria-targeted peptide that stabilizes cardiolipin to support energy production, became the first FDA-approved mitochondrial therapeutic in 2025, though only for the rare Barth syndrome, with the brain rationale still mechanistic and no cognitive trials