Building metabolism refers to the process of increasing your body's metabolic rate, which is the rate at which your body burns calories. By building metabolism, you can make fat loss easier and more likely to be permanent. One of the most effective ways to build metabolism is by building muscle through strength training. When you train in a way that prioritizes strength and muscle development, your body becomes more efficient at burning calories, even at rest. This means that you can eat more while still maintaining a lean physique. Building metabolism is crucial for long-term weight management and overall health.