Which bodily functions are supported by a person's resting metabolism?

A person's resting metabolism, also known as resting metabolic rate (RMR), refers to the amount of energy expended by the body at rest to maintain basic physiological functions. This includes essential processes that are vital for sustaining life.

Breathing is crucial as the body needs to take in oxygen and expel carbon dioxide continuously to support cellular respiration. Blood circulation is also fundamental, as it delivers oxygen and nutrients to tissues and organs, while removing waste products. Additionally, neurological function requires energy for the brain and nervous system to operate effectively, ensuring that signals are transmitted and processed throughout the body.

These functions represent the core metabolic activities that occur even when an individual is not actively engaged in physical tasks or exercise. While physical activity and exercise can increase energy expenditure, they are not a component of resting metabolism. Similarly, while digestion and muscle repair are important processes, they do not encompass the full range of functions supported by resting metabolism, which primarily focuses on maintaining life-sustaining processes at rest.