Metabolism: Energy, Heat, Work, and Power of the Body

Abstract

The study of energy in the body begins with an overview of heat and heat flow. The analysis of the energy content of food is followed by how energy is stored in the body and used in the form of ATP. Energy usage by the body is described in terms of the metabolic rate under passive and active conditions, and how it is related to body weight. The net energetics of the body includes several modes of passive and active heat loss, and this is related to body temperature.