In foreign countries, drinking more ice water is usually a natural habit, while China's concept of drinking more hot water is based on TCM health preservation and life science.

The following is a scientific analysis of the influence of ice water and hot water on human body.

1, ice water: When we drink ice water, the ice water first enters the human stomach, and the body temperature of the stomach will suddenly drop. When the temperature of the stomach deviates from the normal temperature of the human body by 37 degrees, the immunity of the stomach will decrease, especially for people with poor gastrointestinal mucosa. There will be adverse reactions such as nausea, vomiting and stomachache. Ice water is usually not disinfected at high temperature, so it is easy to be polluted by bacteria and viruses, and diseases will affect one's health from the mouth.

2. Hot water: hot water, we mean boiling cold water, leaving it or making it into warm water before drinking. The water temperature is about 37-50 degrees, slightly higher than the human body temperature. Drinking some hot water at ordinary times can warm the stomach. When the temperature of the stomach is slightly higher than the body temperature, the blood circulation in the stomach is accelerated, and the immune ability of the body becomes stronger, so that the moisture and cold in the stomach are discharged from the body, especially for people with bad stomachs and middle-aged and elderly people. The stomach is the foundation of the day after tomorrow. Drinking some hot water and tea regularly to nourish the stomach will have a better health care effect.