HEALTH FEATURE ARCHIVE
Basal Metabolic Rate
The "basal metabolic rate" (BMR) is the metabolic rate determined at rest 12 to 14 hours after the last meal. In healthy humans the BMR is approximately 2000 kcal/day. (The metabolic rate is actually lowest during sleep.)
The metabolic rate is affected by recent food ingestion, muscle exertion, environmental temperature, height, weight, body surface area, age, sex, emotional state, body temperature, pregnancy, menstruation, level of thyroid hormones, and "stress" hormones (epinephrine and norepinephrine).
Last Editorial Review: 7/25/2002