14 Aunt Lu, who takes care of the elderly, told me the menu of the elderly the day before yesterday. For breakfast, a glass of milk, two boiled quail eggs, five foods cooked with red dates, three longan, 15-20 medlar and a small piece of bread; I ate a bowl of porridge at noon, and the dish was scrambled eggs with leeks. I had a bowl of lotus root starch and a bean paste bag for dinner. Aunt Lu said that sometimes bread is replaced by cake or egg yolk pie. Steamed bread, lotus root starch, noodles, wonton and porridge are often eaten by the elderly. Usually, the elderly can't eat three meals a day without milk, porridge and lotus root starch. In addition, the elderly should eat 30 to 40 cents of vitamins every day: one vitamin A, vitamin B2: 5-10:10-20mg (10mg/pill, two tablets), and vitamin B2:5- 10mg (5mg. Take it twice every morning and evening. In the face of numerous nutrition and health products in the society, Zheng Lao made it clear: "I don't advocate eating more supplements. At present, I have reservations about all kinds of nutrient solutions. I think many supplements are for making money and deceiving people. " In terms of dietary nutrition, he attaches importance to reasonable nutrition and is mainly vegetarian. Eat more vegetables, not animal fats and oils, only vegetable oils, and eat less fried and pickled foods and foods that are too spicy, salty and sweet. When eating regularly, only eat eight or nine points full, chew slowly. He has been living a regular life, especially when he is old, and his diet is very moderate. His diet is based on the principles of three lows (low fat, low energy and low sugar), two feet (sufficient vitamins and dietary fiber) and easy digestion. Zheng Lao insists that all regulations cannot be changed at will and strictly enforced. He is experimenting with himself and according to his own scientific research design. It is difficult for ordinary people to live a programmed life every day. However, Professor Ji Zheng is carrying out this healthy research project with the attitude of a scientist. It is unimaginable that such a long-lived old man, like many ordinary people, has struggled with the disease many times in his life: 19 16 years suffering from tuberculosis; 196 1- 1963 underwent laparotomy three times and was hospitalized for nearly one and a half years; 1997 blood loss exceeds 1000 ml, and he was hospitalized for 80 days; 200 1 He broke his hip; In 2004, I was hospitalized for more than 4 months because of stomach trouble.
Every time he talks about the relationship between life and death, Zheng Lao will answer with his "Debate on Life and Death", which says: Life is death, and life and death are natural laws. Peng Gu is 800 years old, and ephemera seize the day. Although life and death are different, their death is one. The arrangement of creation is ingenious, and there is nothing people can do. Don't seek long grass, there is no medicine in the world. We should only be careful about health care and avoid going to extremes in health care. If you want to relax yourself, your mind and body will be very comfortable. Work and rest should be moderate, especially diet should be careful. See a doctor early for minor illness, but less anxious for serious illness. If you come, you will be safe, and you will never rest. It is necessary to convert to the laws of nature. Don't be beautiful in the morning glow, but love the sunset red. In fact, Professor Ji Zheng knows that he is old, but he never thinks about that old word. He regards finding a job and suffering as a kind of enjoyment. In his view, such a choice certainly depends on his health. Zheng Lao said: forget your age, refuse to accept your old age, and devote yourself to science until death do us part. Besides, I like to be healthy and vigorous, and I have no decadent posture. If the days are the same, I will write another book. This is the pursuit of a centenarian.
In My Memories published by Zheng Lao 1980, I said: I like working all my life, but when I was young, I was busy with my studies and business, and I had no special hobbies. After the age of 50, I like gardening in my spare time, and I am engaged in planting vegetables, flowers and trees. After 60, pay attention to physical exercise. In his later years (after 1970s), he became more and more interested in classical literature, especially reading Tang poetry and Song poetry, especially appreciating the works of Lu You, Wang Wei and Southern Tang poets. When I come here, I occasionally write some poems to amuse myself, and I am also interested in Chinese painting appreciation and tourism. I usually travel once a year in winter and summer vacation. Now, although Zheng Lao is over one hundred years old, he is still quick-witted and energetic, and he is still compiling the biochemical history of China. 1900 Ji Zheng was born in a poor peasant family in Nanxi, Sichuan. Since childhood, my family was poor and sickly. /kloc-entered the county senior primary school at the age of 0/4, and 17 graduated with the first place. 192 1 year, Ji Zheng was admitted to National Chengdu Normal School, and soon dropped out of school due to illness. The misfortune of dropping out of school for many times due to illness did not hide his brilliance. Later, with the support of friends, he was admitted to Southeast University (later renamed Central University, the predecessor of Nanjing University) at the age of 22.
One day, Ji Zheng, who just entered the university, knocked on the office of Professor Bing Zhi, a famous biology professor in China. With the ability of self-study, he poured out the idea of pursuing science that he had saved for many years. Professor Bing listened patiently to this ambitious young man's interests and hobbies, and helped him choose Chinese, English, chemistry, self-taught general zoology and botany taught by Professor Qian. The personal teaching by two masters not only made Ji Zheng interested in the chemical changes in life activities, but also laid a good foundation for him to choose nutrition as his lifelong career in the future. At the same time, he witnessed the attitude of real scholars, and benefited a lot in moral character, character and dealing with others. After graduating from college, Ji Zheng stayed in the Agricultural College of Central University as a teaching assistant. 1930 studied abroad at public expense and entered Ohio state university to specialize in biochemistry. In the meantime, he studied at the University of Chicago, Yale University and Indiana University. While studying science and modern nutrition, he also had the opportunity to learn from a group of world-famous biochemists and nutrition authorities. In old China at that time, people's lives were not enough, and there was no nutritional balance at all. Protein is an indispensable nutrient for human body, which mainly provides energy for human body and promotes human growth, development and metabolism. At that time, China people generally lacked protein, while China was a country rich in soybeans. Therefore, Ji Zheng chose soybeans from China as his doctoral thesis "Biological Collagen-Soybean Protein". 1934 received his doctorate and was elected as a member of SigmaXiSociety. However, due to his sickly childhood experience, Ji Zheng felt great pain for the weak physique of China people. He was determined to study nutrition to repay the shame of "the sick man of East Asia" and realize the ideal of "saving the country through science". That spring, he embarked on the road to return home with great enthusiasm for serving the country. After returning home, Ji Zheng accepted the invitation of Professor Bing to work in the Institute of Biology, Chinese Academy of Sciences. There, he established the biochemical laboratory, the first biochemical professional institution in China. 1935, Central University established Medical College. Ji Zheng established the Department of Biochemistry and became one of the earliest professors. From then on, he began the career of nutrition education that he loved all his life.
In 1930s, there was no self-made biochemistry textbook in China. 1937, after CUHK medical college moved to the capital, Ji Zheng first compiled the English version of "Guide to Biochemical Practice" for teaching needs, and reprinted it three times during the eight years of the Anti-Japanese War as a textbook for biochemical experiments in the rear schools.
Professor Li Ruifen, a clinical nutritionist in China, who is nearly ninety years old, began to study in the Department of Clinical Nutrition of Shanghai Aurora University from 65438 to 0939. According to Mr. Li's memory, their "biochemistry class" was a textbook written by Mr. Li.
Ji Zheng continued his research in the United States, still taking the research of soybean protein as a breakthrough to solve people's nutritional problems, and put forward the scientific basis of protein complementation. However, the main purpose of the research on the nutritional loss caused by superfine grinding of grains, the nutritional analysis of common foods and the influence of storage and cooking on nutritional components is to improve the nutritional status of the people.
Social unrest has not stopped Zheng Lao from taking his own teaching and research section to the north and south of the country. During the eight-year Anti-Japanese War, when enemy planes roared and materials were extremely scarce, he always cared about "the nutritional problems of our wartime citizens" and formulated "the minimum nutritional needs of China citizens". He initiated the establishment of Chengdu Biochemistry Society in Chengdu, and gave birth to the first biochemical academic organization in China. 1945, taking Xu Dadao, Yang Guangqi, Peng Shusheng and Ding Guangcheng as the first batch of graduate students, he founded the first formal institution in the history of education in China-the Institute of Biochemistry.
During this period, Zheng Lao also lived and practiced in strict accordance with his own nutrition theory. During the period of 1935- 1936, Nanjing media continuously reported that people were poisoned by eating bananas and taro together. Zheng Lao, who has profound knowledge in biochemistry, nutrition and physiology, questioned this. He resolutely selected 14 from more than 80 pairs to study the so-called "Xiangke food", including bananas and taro, peanuts and cucumbers, crabs and persimmons. Zheng Lao first took mice, dogs, monkeys and other animals as experimental objects, and then conducted experiments on people. Based on science, he fully refuted this fallacy which is contrary to the dietary guidelines, and proved that 14 did not interfere with food. Today, some people still put forward the fallacy of "eating like its grams" again, but when their books became bestsellers, many experts in the nutrition field firmly did not believe this evil, and their basis was still what Zheng Lao had confirmed with scientific experiments as early as the 1930s. In other words, Zheng Lao's innovation, pragmatism, rigor and courage to defend scientific truth in scientific research work are still of great significance today. When New China was founded, Zheng Lao, who had reached the age of knowing his destiny, worked part-time in the Fourth Military Medical University, Jinling University and other universities. Before he was officially transferred to NTU, he had set up a biochemistry laboratory in NTU Biology Department. Besides being invited to teach biochemistry in agricultural colleges, medical colleges and comprehensive universities, he also wrote a series of monographs on nutrition, such as Historical Materials of Modern Nutrition in China, Series of Historical Materials of Science in China and Food Poisoning. Among them, The Historical Materials of Modern China Nutrition records the whole process of food nutrition research in China from germination, growth, development to discipline establishment, which is a very precious material. During the "Cultural Revolution", although Ji Zheng was over eighty years old, he still did not escape the disaster. He was quarantined twice and was forced to stop working for five years. 1972, he returned to the podium after a long absence. During his 80-90-year-old 10 years, he independently compiled and published seven monographs, among which General Biochemistry won the second prize of the national excellent textbook and Aging and Anti-aging won the second prize of the national excellent popular science reading. Published 56 scientific works, reviews and popular science articles, among which "The Road to Health and Longevity" won the first prize of the national excellent popular science essay; Cooperative research papers 16, 9 master students and doctoral students, more than 0 senior teachers 10, and 4 academic conferences1time.