Water is an indispensable substance for life, and it is the guarantee for the survival of any organism and cell. The digestion and absorption of various nutrients, the excretion of metabolic substances, the maintenance of acid-base balance and the regulation of body temperature all depend on the participation of boiled water. If people can drink water in time and scientifically, it is very beneficial to promote health and longevity. So, what kind of water should people choose? What kind of water is suitable for drinking? Under the existing conditions, how can people drink good water?