A Romulan with blood on his face. Nanoprobes assimilating blood cells. Blood is the circulatory fluid that runs through most corporeal lifeforms in the universe. Its primary function is to carry nutrients and respiratory gases to cells and to remove waste products.
Muscle is more metabolically active than fat, and building muscle can help increase your metabolism (36, 37, 38, 39). This means you will burn more calories each day, even at rest (40). Lifting weights will also help you retain muscle and combat the drop in metabolism that can occur during weight loss (41, 42, 43, 44).
Increasing Metabolism. How metabolism can be boosted, and the effect of the body's muscle mass and heart rate on the burning of calories. Metabolism is the number of calories the body burns and is made up of three components: resting metabolic rate, physical activity and a smaller amount needed to process food.