The human body can be divided into "acid and alkali constitution" and "alkaline beverage", which can change people's constitution, treat diseases and prevent diseases.
Rumors:
The acid-base balance of human body is one of the very basic and important theories in medicine, and its research can be traced back to19th century. 1884, the Swedish chemist Arrhenius put forward the theory of acid-base ionization, arguing that all compounds with H+ cations ionized in aqueous solution are acids, and all anions with OH- ions ionized are bases.
1923, Danish chemist Bronst and British chemist Laurie further put forward the proton acid-base theory, pointing out that the essence of acid-base reaction is proton transfer between two pairs of * * * yoke acid-base pairs, which is a process in which strong acids react with strong bases to generate weak bases and weak acids. Through research, scientists found that the human body is a precise and powerful acid-base balance system, which can accurately maintain the pH value in the blood within a narrow range of 7.35-7.45, and once it deviates from this range, the functions of cells and organs may be greatly affected and cannot work normally.
The mechanism of regulating acid-base balance in human body is very complicated. First of all, blood contains a large number of chemical buffering pairs, such as bicarbonate, phosphate, protein, etc., which can quickly play a buffering role through chemical reaction, neutralize excess acid or alkali in the body at any time, and maintain the stability of pH value in the body. Secondly, the lung also plays an important role in maintaining acid-base balance in the body. We can reduce the formation of carbonic acid by expelling carbon dioxide from the body and adjust the acid-base balance in the body. Some elderly patients with chronic bronchitis may have respiratory acidosis due to the decline of lung function and the accumulation of carbon dioxide in the body. The kidney is the most important organ to maintain the acid-base balance in the body, which can excrete excess acid or alkali in the body, thus stabilizing the pH of the body. Metabolic acidosis often occurs in patients with severe renal failure. At this time, it is necessary to help patients excrete acidic metabolites and restore normal acid-base balance. Although the regulating function of kidney is slow, and it often takes several days to see the obvious effect, its regulating ability is still quite strong.
It is precisely because there are so many complex and powerful regulation mechanisms that the pH of the human body remains quite stable, and it is almost impossible to change significantly just by eating a certain food. On the other hand, once the pH value in the body obviously exceeds the range of 7.35-7.45, it often means that there are serious problems in the body. For example, the common clinical acidosis diseases, such as shock, heart failure, respiratory failure, renal failure, etc., are very serious diseases. Relatively speaking, alkalosis is rare, and the common clinical symptoms are electrolyte disorder and insufficient liquid capacity. Once there is obvious acid-base balance disorder in human body, almost without exception, it needs active treatment, otherwise it may have life-threatening consequences after a long time.
The so-called "alkaline constitution" can prevent cancer, arteriosclerosis, etc. It is completely nonsense. It is almost impossible to keep the body alkaline by ingesting certain foods. If those foods or drugs really have that great effect, they may cause danger to the lives of users, not to mention the health care function. Many deceptive "theories" often use everyone's little understanding of scientific knowledge to make money in the name of science.
Expert: Wang Xuemin, Director of the Department of Critical Care, Songjiang District Central Hospital.
Judging expert: Yang Weibin, vice president of Graduate School of Chinese Academy of Traditional Chinese Medicine and expert of Health 2020 of National Health and Wellness Committee.
Producer: Cop China-Scientific Refutation