Basal Metabolic Rate is the minimal caloric requirement needed to sustain life in a resting individual. Let's look at some factors that affect BMR:Age: In youth, the BMR is higher;
age brings less lean mass and slows the BMR. Height: Tall, thin people have higher BMR's. Growth: Children and pregnant women have higher BMR's. Body Composition: The more lean tissue, the higher the BMR.The more fat tissue, the lower the BMR. Fasting/Starvation: Fasting/starvation hormones lower the BMR. Malnutrition: Malnutrition lowers the BMR. Thyroxin: The thyroid hormone thyroxin is a key BMR regulator; the more thyroxin produced, the higher the BMR. See also: Basal Metabolic Rate facts, Basal Metabolic Rate
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