Humans eat food in order to meet the material and energy needed by the body for metabolism. As warm-blooded animals, the human body's demand for these substances and energy will not change much. The so-called "subtle matter" is a completely imaginary concept.

In modern science, we call the substance that the human body needs to supplement from food "nutrition". Some nutrients can be kept in the body for a period of time, but most nutrients will be automatically adjusted, so it is difficult to "replenish" them in winter and wait for other seasons.

Related introduction

There are still many people who think that "the winter climate is cold, and in order to maintain a normal body temperature, the human body needs to generate more heat to resist the invasion of the cold. Therefore, the body's consumption of nutrients also increases, and the demand for nutrients increases, so the desire for tonic is particularly urgent." In ancient times, people's living conditions were relatively difficult, and they might have such a "feeling". In fact, cold in winter also means less activity-less calories are consumed, and actually less calories are needed.

In the long boring winter, getting some food to eat may be the enjoyment of spending the cold winter. Modern people's warm-keeping and heating facilities are perfect, and their "actual environment" is not cold, so there is no need to "generate more heat to resist the cold" through food. Moreover, if we really want to resist the cold, put on more clothes and set the temperature of air conditioning and heating higher, the problem will be solved efficiently.