The persistent, internally motivated energy and focus necessary for goal attainment, fundamentally supported by stable levels of anabolic hormones, balanced catecholamine signaling, and efficient glucose metabolism in the central nervous system. It is sustained physiological motivation.
Origin
While a psychological term, its basis lies in the neurochemistry that fuels motivation, which is deeply intertwined with the dopaminergic reward pathways and the permissive effects of adequate testosterone or estrogen on neural drive centers. It acknowledges the biological underpinning of persistence.
Mechanism
Optimal drive is facilitated by appropriate pulsatile dopamine release modulated by background hormonal states. Cortisol, when released appropriately, mobilizes energy for action, but chronic dysregulation depletes these systems, leading to motivational decline. Effective thyroid hormone action ensures the metabolic energy supply for sustained neural activity.
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