People, since they came into the world, with the passage of time, the stars, in the experience from the cradle to the grave of a hundred years of life, even if there are a thousand kinds of ambition, but also inevitably old age disease haunted. As the saying goes, everyone is equal in front of the disease. The source of disease is often different from the human body, otherwise the disease will not find you for no reason. In layman’s terms, disease exists in the world, but it is just waiting for an opportunity to cause disease due to human health monitoring oversight. If your body is unfortunate enough to have the opportunity and conditions for disease to be born, obviously, it will become a breeding ground for disease. Therefore, it can be said that if you catch a disease coming, it is definitely not by chance, it must be your lifestyle and diet that creates the ideal soil and breeding ground for the disease to come, after all, there is no love without a reason in this world, and there is no hate without a reason. This is the premise of this article. By clarifying this point, we can easily understand the causes of human diseases and thus help to find effective solutions to prevent and treat them. From a macroscopic point of view, human disease-causing factors can be divided into three categories according to the degree of difficulty: the most difficult to prevent and control is the psychological factors, followed by chemical factors, and the easiest is the physical factors. We will talk about the human pathogenic factors from these three aspects respectively. First of all, let’s talk about physical factors. Pathogenic physical factors refer to the physical factors in the human body that are beyond the tolerance range of the normal living environment, such as noise, strong sound, ionizing radiation (isotopes, x-ray), strong light, vibration (including resonance), strong current, strong magnetic field, and other physical factors. Strong sound and noise can lead to deafness and headaches and insomnia, ionizing radiation can lead to radiation sickness, bright light can lead to blindness and glare, strong magnetic fields can interfere with the brain’s working patterns, etc., and vibration can easily lead to human fatigue (e.g., driving on bumpy roads in country tractors and long-distance buses). Of course, there is a good side to these physical factors, such as electromagnetic radiation can be used for information exchange and communication, the WIFI that we use is typical of electromagnetic radiation. Interestingly, the human body is designed to integrate several functions and tools for the brain, including the eyes for visual information processing, the ears for auditory information processing, the skin for tactile signal processing (which of course extends to the whole body), etc. Physical factors, including acousto-optics, can be used for rapid communication, but it is rare to see examples of chemical factors being used directly for communication. Obviously, for the protection of physical factors that can cause disease, it is clear that physical isolation should be the main way, such as away from noise sources, away from hot and cold areas, away from radiation and bright light exposure, etc., or the use of a square cabin type of equipment to shield these injury-causing factors in the local space, significantly reducing the impact on the human living space can be. The use of such programs can effectively reduce the human body’s exposure to pathogenic physical factors. Next we discuss the impact of pathogenic chemical factors on health problems. Chemical factors in fact constitute the greatest harm to our health, sometimes man-made (e.g., melamine, Sudan red, etc.) and sometimes deliberate (e.g., the use of drugs, including arsenic, chemical herbs and biological drugs, to treat illnesses and save lives). The environmental factors that affect the health of the body, so it is not too much to include drugs in this category, of course, also includes a variety of antibiotics. Although antibiotics can inhibit bacterial proliferation, their use poses long-term risks to human health because of the severe disruption of intestinal flora, significantly accelerating intestinal flora disorders and dysbiosis), sometimes unintentionally, i.e., without awareness, such as pesticide residues, heavy metal pollution, air pollution (e.g., acid rain, etc.), hazy weather (e.g., PM2.5 overload, etc.), indoor environmental factors (e.g., paint odors in newly renovated homes, etc.), and the effects of the environment. For example, the smell of paint and formaldehyde in the decoration of new homes, etc.). In addition, in fact, the most harmful chemical factors for health is food, because human nutrition needs three meals a day, nutrients are absorbed by the intestinal tract at the same time, a large number of unwanted metabolic wastes and toxins will be excreted from the body by the intestine, however, if unfortunately the body contains symptoms such as gastric ulcer, enteritis, constipation, these substances will be absorbed into the blood through the broken mucous membrane of the gastrointestinal tract in large quantities, accelerating the promotion of the body “disease”. The body’s “diseased physique” formation will be accelerated. This is what Chinese medicine means by “fecal toxins into the blood, a hundred diseases”. Sometimes people who seem to be very healthy or even robust suddenly become very ill or even life-threateningly ill, mostly because of the presence of “scarred gastrointestinal mucosa” and “severely disordered and disturbed intestinal flora”. “It is difficult to stop the “invasion” of chemicals from the intestinal tract, which are a serious health hazard! Finally, let’s discuss the impact of pathogenic psychological factors on human health. Obviously, this is the most complex and difficult to control pathogenic factor. As the saying goes, people are good by nature. Small children have a sunny and good mind, do not know the suffering and worries of the world, until the need to go to school, exams, work, life, workplace, etc., it is easy to face failure, criticism, misunderstood, jokes, being cold and other psychological pressure, it is necessary to constantly strive and competition, it is easy to lead to psychological scars, that is, the so-called easy to “psychologically injured “If you have a good attitude of psychological sunshine and healthy emotions, and at the same time you can receive timely care and love from society and family and friends, then you will usually recognize the positive effects of these mental health risk factors and form a “heaven will Such a person will not be easily defeated by the adverse psychological factors in real life. Therefore, looking at all the factors that affect human health, there are no more than the above three categories. So, how to protect? Obviously, in terms of protection against psychological factors, we need to have a sunny mindset, a “happy, happy-go-lucky” mindset to face all the stresses of life and pursue the true meaning of human life and happiness. In terms of chemical protection, it is necessary to repair the damage to the mucous membrane of the gastrointestinal tract in the body as soon as possible, as well as to optimize and repair the disordered intestinal flora as soon as possible, so that the human body will protect its health from the gastrointestinal tract, the first gate. Of course, it is very important to avoid exposure to injurious chemical factors as much as possible. In terms of physical factor protection, it is obvious that by actively doing physical protection, such as staying away from noise and radiation sources, the human body is usually not greatly harmed.