Physical activity has a lasting impact on metabolism over time by increasing muscle mass and enhancing metabolic rate. Regular exercise, particularly strength training, contributes to muscle hypertrophy, which requires more energy to maintain than fat tissue. As muscle mass increases, so does the baseline metabolic rate, leading to higher energy expenditure even at rest. Additionally, consistent physical activity can improve insulin sensitivity and glucose metabolism, further promoting metabolic health. Incorporating a varied exercise routine can create long-term beneficial effects on an individual’s metabolism.