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Together, these findings highlight GHK-Cu as an exciting peptide of interest where copper biology and peptide activity intersect

Ozempic and Zepbound belong to a specific peptide subclass called GLP-1 receptor agonists, engineered to mimic a gut hormone that regulates appetite and blood sugar

Glutathione is the body's primary intracellular antioxidant, and its depletion is one of the most reliable markers of immune decline and accelerated aging

This observation, combined with evidence that older adults have blunted MOTS-c responses to exercise, supports the hypothesis that declining mitochondrial peptide signaling contributes to the reduced exercise adaptability seen in aging