Diseases do not actually exist, but there are individuals more or less successfully born, with some congenital predispositions or deviations from a certain conventional medical norm.
There is also conscious self-harm (for example, destruction lungs by smoking) or vice versa (someone gave it to the eye) incompatible with the characteristics set at birth (for example, bone strength).
All these deviations were called "diseases" by the individuals in the dressing gowns, they are just more comfortable with them track, but in fact it is biodiversity :))
A philosophical question, I will also answer:
For the soul to improve in difficulties (idealist);
The factor of chance, genetic error, diseases exist by themselves (materialist);
Diseases do not exist (nihilist).
Hello. A fairly good reasoning is given in the Buddhist and Hindu religions. quite logical, by the way.
You consider illness as something bad, so the question is.
There are several consecutive explanations:
1) Illness - it is your body's reaction to misuse. That is, if you do not lead the right way of life, then the body wears out and breaks down faster.
2) Disease is retribution for previous actions (a reference to the religion of the East). If you use your body correctly, it still fails. A reasonable question arises: "why did I get a bad machine?" The concept of karma explains this through a cause-and-effect relationship. The cause of the disease arose in a past life, and the consequence was realized in this life. This is the biggest problem for a Western-minded person to understand.
3) Illness is a way to fulfill a life task. That is, as a result of illness, a person rethinks his life. This is one of the training options (when fate gets tired of pushing you in the right direction, it gives you a good pendel).
I understand that from the standpoint of a Western person, this sounds unscientific and unsubstantiated, since broad RCTs have not been conducted and that's all such. But the West is not the whole planet, but at most only 1/4
Disease from the word pain, and pain is a signal. It is important not to jam the signal, but to draw conclusions so that this does not happen again. The disease forcibly forces a person to comply with the purification regimen, if he has not done so voluntarily before. And this signal is addressed not only to the owner, but also to those around him, so that they choose healthy partners for themselves. There are also simpler signals such as acne and bad odors. And hair grows in certain places to enhance odors, which make it possible to distinguish between sick and healthy, so it is necessary not to suppress odors, but to flush out dirt from the body so that these odors do not repel. I love Arnold Eret's article "This is the disease speaks." https://istcelis.ru/wp-content/uploads/2013/07/%D0%A2%D0%B0%D0%BA-%D0%B3%D0%BE%D0%B2%D0%BE%D1% 80% D0% B8% D1% 82-% D0% B1% D0% BE% D0% BB% D0% B5% D0% B7% D0% BD% D1% 8C.pdf It is customary in society to hide the symptoms of diseases, although they are defensive reactions. A dry cough helps spit out a freshly fallen virus. A wet cough helps clear the sticky mucus from the lungs. Temperature thins the blood to facilitate the movement of lymphacytes. Snot removes starch from the body, which thickens the water and attracts viruses. Scabies destroys the fungi in the upper layers of the skin and helps to stretch the lymphatic vessels. Those who do not hide the symptoms recover quickly.
I think this is natural selection. like death. so nature controls the number of life. if no one gets sick and dies, sadly, very soon the planet will overflow and all resources will run out.
Diseases exist so that a person realizes his insignificance in front of nature, but illness is a chance to challenge and try to find a solution or an answer. Actually, the disease at some level is a kind of equation, then with one, then with two, then it is unknown with how many unknowns, but sooner or later all equations are solved.
Nothing. They just are.
One reason is related to imperfection of the body , as already noted before me. In addition, highly organized organisms have a limited life span at the genetic level. And this is realized through the aging mechanism , accompanied by all sorts of sores.
As for various kinds of infections, any kind of living creatures is a resource that sooner or later other living beings master organisms . And there are two strategies here.
The easiest way is to say that the question cannot be put this way, this is an unscientific teleological approach, diseases exist not for what, but why - because they can.
But this is too boring. More interesting is the hypothesis that the population needs diseases as a negative feedback mechanism that will be tied to the size and overcrowding of the population, preventing it from going beyond certain limits. Those populations that suddenly acquired impenetrable immunity simply died of hunger after a short time. But this hypothesis lacks a mechanism that would explain how selection can work this way and experimental data on whether superimmunity occurs at all in living things and how it affects populations in the future.
So choose - boring but reliable or bold but speculative.
Diseases exist because the body is not an ideal system and internal processes in it can be disrupted. Be it bacteria or viruses, hereditary diseases or injuries, homeostasis (constancy of the environment) is disrupted and all vital activity is undermined, and the consequences of this are called illness. Moreover, the body is a complex system with multiple interconnections, therefore, a change in one parameter affects many others.
And how to deal with this fear?