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The necessary preliminary information explaining the causes of manifestations of diseases.
1. Any diagnosed disease has an agent or group of pathogens.
2. Each causative agent of the disease is characterized by its inherent properties: virulence - the ability to infect, and pathogenicity - the potential of the ability to cause disease.
3. No causative agent of the disease can manifest itself as long as the body's defenses (immunity) are able to detect and destroy it.
4. Between the level of immunity and the causative agents that can cause disease, there is an inverse relationship: the higher the level of immunity, the less chance of manifestation of any disease.
5. Decreased immunity is also a disease, although it has blurred, not pronounced symptoms: episodic manifestations of weakness, poorly expressed iron deficiency anemia, frequent desires to have a rest, frequent colds and malaise without pronounced temperature increase, etc.
6. High immunity can be only if the body is replenished with "raw materials" in a timely manner, both for the production of "building materials", of which the organism consists, and for the production of energy consumed in the process of "construction" - oxidation-reduction reactions.
7. The infectious nature of any disease is assumed.
8. Cancer is an infectious disease that has the longest "preparatory" period, during which people simply do not pay attention to insignificant worsening changes in the state of health.
9. There is not a single drug (pharmacy) drug that does not have a negative side effect. All drugs "from the pharmacy" - a kind of "first aid", as directed to a rapid and effective removal of symptoms of the disease. All other concerns for restoring the functional activity of the organism as a whole - are placed on the body itself: how will anyone be lucky, so it will be ...
10. **If a person does not take purposefully preventive measures, then he is doomed to get sick. And if he does not have a full understanding of his illness, then he is doomed ...**