(BMR) Basal metabolic rate (the amount of energy expressed in calories that a person needs to keep the body functioning at rest) accounts for roughly _____ of total energy expenditure.

Answer 60% - 70%

BMR is difficult to measure since it requires the body to be at mental and physical rest and to not have eaten for 12-24 hours. The majority of the energy expended by the body is expended to just keep the body running. Do know that BMR varies with age, sex, genetics, muscle vs. lean body mass, and many other factors.

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