Resting energy expenditure (REE) refers to the amount of energy, measured in calories, that the body requires at rest to maintain basic physiological functions such as breathing, circulation, and cell production. It represents a significant portion of an individual's total daily energy expenditure and is closely linked to basal metabolic rate (BMR), which is the energy expended while at complete rest in a thermally neutral environment. Understanding REE is crucial for nutritional assessment and can influence dietary planning and weight management.
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