In the context of health, "metabolism" refers to the biochemical processes that convert food into energy. This complex system includes catabolism (the breakdown of nutrients) and anabolism (the synthesis of compounds required for growth and repair). A person’s metabolic rate determines how efficiently the body uses energy. Factors such as age, sex, muscle mass, and activity level can influence metabolism. A higher metabolic rate can assist in weight management by burning more calories even at rest. Understanding metabolism is crucial for developing effective dietary and exercise strategies to improve health.