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Endogenous Signaling Capacity

Meaning

The inherent physiological ability of an organism to synthesize, secrete, transport, and effectively respond to its own internal molecular messengers, including hormones, cytokines, and growth factors. This capacity is a key determinant of systemic health, vitality, and resilience, reflecting the functional integrity of the entire neuroendocrine network. A decline in endogenous signaling capacity is a hallmark of biological aging and hormonal dysfunction.