From a physiological perspective, the human body prefers a warm environment. With a warm "internal environment," qi and blood can circulate properly, transporting the nutrients the body needs to various tissues and organs without hindrance, while at the same time expelling metabolic waste from the body as quickly as possible. However, if cold drinks are consumed frequently and in large quantities, the blood vessels in the internal organs will be in a relatively constricted state, which can, to a certain extent, reduce the body's metabolism.
Regardless of the season, regularly drinking hot beverages is highly beneficial to health. Firstly, drinking hot beverages has the effect of nourishing the body's stomach qi. Traditional Chinese medicine holds that when the body's stomach qi is abundant, the body is naturally healthy, and even if one is ill, recovery is relatively easy. Secondly, regularly drinking hot beverages can also enhance the body's ability to resist viruses. This is because when drinking hot beverages, its steam is inhaled along with a large volume of air, warming and moistening the upper respiratory tract, promoting blood circulation, increasing the phagocytic ability of white blood cells against bacteria and viruses, and preventing their invasion. At the same time, after hot beverages enter the body, they can warm the body's organs, making the whole body feel relaxed and comfortable.