我们知道pH值是用来表示物质的酸碱程度的。人体内环境的酸碱度应该是保持在7.35～7.45之间,而pH值是以7为酸碱分界线的,也就是说,我们的体液应该呈现弱碱性才能保持正常的生理功能和物质代谢。可是据一项都市人群健康调查发现,在生活水平较高的大城市里,80%以上的人的体液pH值 We know that pH is used to indicate the degree of acidity of a substance. The pH of the human body environment should be maintained at 7.35 ~ 7.45, while the pH value of 7 is the acid-base boundary, that is, our body fluids should show weakly alkaline to maintain normal physiological function and material metabolism. However, according to an urban population health survey found that in the higher living standards of large cities, more than 80% of the body fluid pH