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Adaptive Thermogenesis

Meaning

Adaptive thermogenesis represents a key physiological response where the body adjusts its energy expenditure beyond what is predicted by changes in body composition and physical activity. This precise metabolic adaptation is primarily a defense mechanism against weight loss, often leading to a plateau or weight regain in clinical settings. It involves a regulated decrease in resting metabolic rate to conserve energy when caloric intake is reduced, reflecting the body’s sophisticated hormonal and neural survival programming. This mechanism highlights the complex interplay between energy balance and the endocrine system.