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Physiological Buffer Capacity

Meaning

Physiological buffer capacity is the intrinsic ability of the body’s systems to absorb and neutralize internal or external stressors—such as metabolic waste, psychological strain, or infectious agents—without incurring significant functional disruption or deviation from homeostasis. This capacity represents the reserve strength and resilience of key systems, including the endocrine, immune, and cardiovascular networks. A robust buffer capacity translates to greater adaptability and reduced susceptibility to disease and age-related decline. Clinically, this capacity is a vital metric for assessing overall biological resilience and longevity potential.