Metabolism refers to the biochemical processes that convert food into energy within the body. It is influenced by various factors such as diet and exercise. A well-balanced diet rich in nutrients can optimize metabolic functions, while inadequate nutrition may lead to a slowed metabolism. Regular exercise, particularly strength training, can increase muscle mass, which in turn boosts metabolic rate. Additionally, factors like age, hormone levels, and genetics play roles in metabolic efficiency. Understanding these dynamics can help individuals tailor their diet and exercise plans for better health outcomes.