<prompt> BMR is decreased in:Cold temperatureHyperthyroidismExerciseHypothyroidism  <response>: Ref: Multiple SourcesExplanation:Both increase Fever and decrease hypothermia in body temperature increases basal metabolic rate. Ref. HarperFactors affecting Basal Metabolic rate BMRIncreased BMRDecreased BMR Male sex Children Pregnancy Thyroxine Testosterone Growth hormone Fever Hypothermia Stress Female sex due to more fat Old age-decrease in muscle mass Sleep - upto 10 - 15 due to decreased lone of skeletal muscles and decreased activity of CNS Malnutrition Starvation 