Metabolism is a series of complex chemical processes that occur in the human body. It involves the transformation of nutrients into energy required for bodily functions, tissue maintenance, cell growth and regeneration. In this article, we'll explore what metabolism is, how it works, and the factors that influence it.

Definition and Components of Metabolism:
Metabolism refers to all the chemical processes that occur in the body to sustain life. Consists of two main components:

a. Catabolism: The process of catabolism involves the breakdown of complex substances, such as carbohydrates, proteins, and fats, into simpler forms, producing energy. Catabolism also produces by-products such as carbon dioxide and water.

b. Anabolism: The process of anabolism involves the formation of complex substances, such as proteins and nucleic acids, from simpler molecules. Anabolism requires the energy produced during catabolism.