Japan's medical services are provided by the people, and the medical expenses are borne by the government, which not only ensures the efficiency, but also solves the problems of difficult and expensive medical treatment. Longevity is not directly related to the habit of drinking cold water. Drinking cold drinks often can easily induce allergies or colds and coughs; However, hot drinks with too high a temperature can easily burn the esophagus and increase the risk of ulcers and even cancer. Drink plenty of water and the right water temperature, so as not to lose your health and hurt yourself.
Note: Anyone who knows a little about tap water in Japan knows that you can drink it directly, but the Japanese always think that drinking it directly will taste bad. But if you add ice cubes to turn it into ice water, the taste of tap water can be neutralized and it will taste better. Drinking cold water will feel less peculiar smell than warm water, and the taste will be clearer, so they will get used to drinking water like this for a long time.
It was not easy to make ice in early Japan, and even after it was made, it would be reduced because of inconvenient transportation. Therefore, the early ice water was not available to everyone, but was only used to welcome distinguished guests, while hot tea was easy to obtain rather than unusual.
Today, although making ice has become simple, the idea that ice is precious has penetrated into the hearts of Japanese people, so it is a kind of respect and intention for Japanese guests to send ice water to restaurants. Give warm water to the guests, and the Japanese will think it is impolite to the guests.