To speed up the building up of body tissues and energy stores and the breaking down of body tissues and energy stores to generate more fuel for body functions, we have to strengthen and boost our body's metabolic processes and make them work faster to help our digestive system digests food that we eat.
To know more about the importance of metabolism in the human body, I included these links for you to read on, my dear readers.
To understand what metabolism is, I included its meanings from the online dictionary.
1. The chemical processes occurring within a living cell or organism that are necessary for the maintenance of life. In metabolism some substances are broken down to yield energy for vital processes while other substances, necessary for life, are synthesized.
2. metabolism 
 -t b  -lz m)The chemical processes by which cells produce the substances and energy needed to sustain life. As part of metabolism, organic compounds are broken down to provide heat and energy in the process called catabolism. Simpler molecules are also used to build more complex compounds like proteins for growth and repair of tissues as part of anabolism. Many metabolic processes are brought about by the action of enzymes. The overall speed at which an organism carries out its metabolic processes is termed its metabolic rate (or, when the organism is at rest, its basal metabolic rate). Birds, for example, have a high metabolic rate, since they are warm-blooded, and their usual method of locomotion, flight, requires large amounts of energy. Accordingly, birds usually need large amounts of high-quality, energy-rich foods such as seeds or meat, which they must eat frequently. See more at cellular respiration. |
metabolism [mɪˈtæbəˌlɪzəm]n
3. (Life Sciences & Allied Applications / Biochemistry) the sum total of the chemical processes that occur in living organisms, resulting in growth, production of energy, elimination of waste material, etc. See anabolism, basal metabolism, catabolism
