This describes the intrinsic and acquired biological capacity of an organism to counteract the natural tendency toward disorder, or entropy, within its complex physiological systems, especially concerning endocrine regulation and cellular function. High resistance implies robust homeostatic mechanisms capable of rapidly correcting deviations in hormone balance, metabolic efficiency, and cellular repair processes. It is a measure of physiological robustness against aging and stress.
Origin
Drawing from the second law of thermodynamics applied to biology, this term frames aging and chronic disease as increasing systemic entropy. Resistance in this context signifies the active, energy-dependent processes—like DNA repair and precise hormone feedback—that fight this decay. It is a modern framework for understanding biological resilience.
Mechanism
Resistance is actively maintained by efficient mitochondrial function, optimized cellular signaling fidelity, and timely clearance of damaged components, such as senescent cells. Robust endocrine axes, characterized by tight negative feedback loops, are crucial components, ensuring that signals like insulin or cortisol remain within narrow, functional bandwidths despite external challenges. Enhancing this resistance is the core goal of longevity-focused hormonal strategies.
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