Metabolism is the general term for all chemical reactions in living cells, and it includes both material and energy metabolism. The metabolism of various organisms is different in the stages of growth, development and aging. Young infants and adolescents are in the process of growing their bodies and need more substances to build their own organisms, so their metabolism is vigorous and assimilation is dominant. In old age and later life, the body’s functions are degenerating and the metabolism is slowing down, so the relationship between assimilation and dissimilation is transformed. Young infants and adolescents are in the process of growing up and need or are caused by diseases such as hyperthyroidism. The actual fact is that there are many factors that are not pathological, but physiological abnormalities that are also associated with hyperactive physique, and specific treatment for specific problems. It is easy to be hungry, easily excited, and emotionally unstable. Physiologically, it can be manifested as a fast pulse and heart rate, easy to sweat a lot, and so on. The actual fact is that you can find out if there are any abnormalities in your thyroid gland, if there are any abnormalities in your heart and lungs, if you can check your blood sugar and urine sugar, if there are any imbalances in your gastrointestinal function, if you can check the CT of your brain, if you can adjust your diet to ensure your mood, if there are any abnormal changes in your blood and biochemistry, if you can develop good habits, it is very important. The actual fact that young infants and adolescents are in the process of growing their bodies, they need more substances to build their bodies, so their metabolism is high and assimilation is dominant. Hyperthyroidism: Hyperthyroidism is the abbreviation of hyperthyroidism, which is a group of common endocrine diseases caused by excessive secretion of thyroid hormones from various causes. The main clinical manifestations of hyperthyroidism are hyperphagia, lethargy, fever, sweating, palpitations, agitation and other hypermetabolic syndromes, enhanced neurological and vascular excitability, as well as varying degrees of goiter, protrusion of the eyes, hand tremors and vascular murmurs in the shins, etc. In severe cases, hyperthyroidism may appear as a critical phase, coma or even easy hunger, excitement and emotional instability. Physiologically, the symptoms may include rapid pulse and heart rate, excessive sweating, etc.