anabolism

Anabolism and anabolic means the synthesis of complex molecules from simpler ones with the storage of energy or constructive metabolism. The processes produce growth and differentiation of cells, increase in body size, and involve synthesis of complex molecules. Anabolic hormones in the human body include testosterone, insulin, growth hormone, and Insulin-Like Growth Factors or IGF. These hormones promote tissue growth. Resistance training promotes tissue growth in part by increasing these hormones.