He points out that water is the exchange medium for all matter in the body, and is the best solvent. Once matter is dissolved in water, chemical processes such as metabolism, digestion, and detoxification can occur.
楊定一指出，水是體內一切物質交換的媒介，也是最好的溶劑，物質溶於水後，各種新陳代謝、消化、排毒等化學作用才易於進行。