What is metabolism?

Metabolism encompasses all the chemical reactions that occur in the body to maintain life, including those that use or create energy. This involves both catabolic reactions, which break down molecules to release energy, and anabolic reactions, which build up molecules and require energy. The energy produced from metabolic processes is essential for maintaining bodily functions, including growth, repair, and overall energy balance.

Focusing on metabolism as a broad concept that includes all biochemical reactions allows for a more comprehensive understanding of how the body utilizes food and other substrates. This definition helps to establish a connection between metabolism and various physiological functions, such as exercise performance and weight management. Understanding metabolism is crucial for individuals interested in improving their health, fitness, and performance, as it directly influences how the body responds to diet and physical activity.