When it comes to “metabolism,” a hot buzzword in the fitness world, a familiar yet subtle figure may come to mind. It reveals a surprising fact: even if you lie in bed all day doing nothing, your body is still quietly burning calories. But did you know? The basal metabolic rate is merely the tip of the iceberg in the metabolism family, and the vast world behind it is far more profound than our understanding of body weight and calorie consumption. Everything in your life—breathing, digestion, thinking, movement, sleep, excretion—is affected by it.
Metabolism is the lifelong guardian of the organs
It allows useful “new substances” (proteins, carbohydrates, vitamins, etc.) to enter the body and, under the action of various biological enzymes, produce the raw materials that make up cells and the energy sources that supply energy, also known as “anabolism”; it also allows useless “old substances” (carbon dioxide, excess water and inorganic salts, nitrogenous wastes such as urine) to be expelled from the body amid the frequent renewal and turnover of cells, also known as “catabolism”. Only when every anabolic and catabolic process maintains a dynamic balance can the body’s healthy circulation be ensured.
In childhood and adolescence, the body needs to accelerate the building of a strong physique and the perfection of functions, and anabolism dominates. In old age, the body’s needs for growth and repair decrease, and catabolism becomes relatively more important; it can provide the energy needed to sustain life while clearing away senescent cells and metabolic waste. Anabolism and catabolism, like the two-wheel drive of life, each perform their duties in different life cycles, jointly outlining a healthy blueprint from youth to the golden years.
Metabolism is essential for sustaining life
Metabolism is regulated by multiple factors
Various factors intertwine and interact, jointly shaping an individual’s unique metabolic profile, which is of great significance for health maintenance, disease prevention and the formulation of treatment strategies.
Metabolism, this finely tuned engine inside life, drives every breath and every movement of ours from dawn to dusk. It is not only the cornerstone of survival, but also the source of health and vitality. Yet the mysteries of metabolism are far from fully unveiled. In future chapters, we will delve into the relationship between metabolism and health—from dietary habits to exercise patterns, from the genetic code to environmental influences—each step revealing how, by understanding and regulating metabolism, we can achieve a higher level of health and vitality. Stay tuned, and let us explore together and make metabolism our best partner for a healthy life.
