Your metabolism involves a set of processes that all living things use to maintain their bodies. These processes include both anabolism and catabolism. Both help organize molecules by freeing and capturing energy to keep the body running strong. These phases of metabolism happen simultaneously.
Anabolism centers around growth and building — the organization of molecules. In this process, small, simple molecules are built up into larger, more complex ones. An example of anabolism is gluconeogenesis. This is when the liver and kidneys produce glucose from noncarbohydrate sources.
Catabolism is what happens when you digest food and the molecules break down in the body for use as energy. Large, complex molecules in the body are broken down into smaller, simple ones. An example of catabolism is glycolysis. This process is almost the reverse of gluconeogenesis.
Understanding anabolism and catabolism can help you train more effectively to lose fat and gain muscle. Rest is also a part of the equation. Your metabolism is at work even when you’re sleeping.
Your hormones play an important role in these processes. Different hormones in the body are associated with either anabolism and catabolism.
Anabolism involves the hormones:
Catabolism involves the hormones: