Zhong Nanshan (Academician of the Department of Medicine and Health Engineering of the Chinese Academy of Engineering, President of the Chinese Medical Association, Chairman of the Respiratory Branch of the Chinese Medical Association, Director of the Guangzhou Institute of Respiratory Diseases, Chairman of the Guangzhou Science and Technology Association, Professor of Guangzhou Medical College) I am very glad that this medical popularization book, which is very popular in the United States, Europe and many other countries, was introduced to China by Yilin Publishing House. Health issues have always been one of the topics that people are most concerned about, because today, with serious environmental pollution and accelerated pace of work and life, health needs to be paid special attention to.Of course, the extension of human life span and the improvement of life quality depend on the progress of the overall level of medical science and technology, and many diseases are being effectively treated or eventually cured.However, while human society is enjoying medical progress, it is also facing the problem of a substantial increase in medical expenses.We need to remember, "The best doctor is yourself", this famous ancient Greek doctor Hippocrates said, I sincerely hope everyone can really understand this sentence.

This understanding has two meanings.First of all, among the top ten causes of death caused by diseases in our country, such as hypertension, diabetes, coronary heart disease, chronic obstructive pulmonary disease, various malignant tumors, etc., they eventually develop into fatal stroke, myocardial infarction, acidosis, renal failure Failure, respiratory failure, heart failure, etc., is a long-term process, which can last for 5 years, 10 years or even 20 to 30 years, and these diseases have early signs. "The embankment of a thousand miles collapses in an ant's nest", if we can face up to this "ant's nest", when blood pressure, blood sugar, blood lipids rise, and lung function tests show ventilation obstruction, etc., although it will not affect the normal activities of the body for a while, But if you are smart enough to pay attention to and take active prevention and treatment measures (such as dietary adjustment, smoking cessation, etc.), you will not develop into a serious disease after a few years, because it will be too late to treat it at that time, even if you are active.I often encounter such a situation: a patient with chronic obstructive pulmonary disease develops respiratory failure and needs to be intubated for artificial respiration. When the condition improves and the intubation is removed, I will ask him: "Do you still want to smoke? Is it?" He said, "No more." Unfortunately, it was too late for him to realize this.So we have to pay attention to our own health all our lives.In the youth and middle age, due to the vigorous energy, there are some "minor problems" and don't want to "make a fuss", but if they are not treated in time, they will lay the root of serious diseases in the future.Pay attention to yourself at any time, prevent and treat diseases in time, and get twice the result with half the effort.

The second meaning is that many people are very concerned about their own health, but they don’t know what is healthy, what is abnormal, and how to be healthy.An obese lady, in addition to feeling that she is not beautiful enough, also knows that obesity can cause many diseases, but what is the best way to lose weight?She often seeks various weight-loss drugs, and even undergoes surgery to remove body fat. In fact, the best and healthiest way to lose weight is to control diet and exercise persistently.Another example is eating American-style fried fast food, which is delicious and chic, but long-term consumption will cause hyperlipidemia, and the chance of suffering from colorectal cancer will increase significantly.Many people base their health perceptions and health practices on information received from advertisements, which is often false.Therefore, it is extremely important to understand your own body and what health is.

In this sense, I think the explanation of health is scientific and professional.It is based on the theory of western medicine, compares the body to a house, takes readers to understand various systems, organs and their operation, teaches readers to know their own body clearly and learn to maintain it scientifically.This book written by medical professionals has a clear structure and rigorous expression, which will bring people practical scientific health care knowledge. It is believed that it can avoid fallacies and create an image of a more authoritative health guidebook. What is rare is that the science and professionalism did not make it a boring textbook.The lively and lively language facilitates readers to understand the profound medical knowledge, and appropriate illustrations are also beneficial.

I sincerely look forward to the readers of this book, and the public can truly establish the concept of self-management of health, and truly become their own health care doctors.After all, it is the wish of each of us to live healthy and young.