People believe they know exactly what cancer is. Moreover, under such a term is not one disease, but several, moreover, they significantly differ from each other. It is believed that the word “cancer” and the word “death” are synonyms, but many tumor diseases do not end in human death. Moreover, it has long been established that oncological formations (proto-oncogenes) are systematically formed in the body, but it successfully copes with them thanks to the existing immunity. And while cancer continues to inexorably mow down humanity.
So what is cancer? This is a violation of the process of reproduction and renewal of cells. The body, in principle, has a system aimed at preventing errors that occur at the cellular level. However, this mechanism may not work if there are some negative circumstances. If there is only one cell with an erroneous program (or they are negligible), the body will destroy them. But if such cells multiply uncontrollably, a tumor appears. While her cells are only growing, the neoplasm is considered benign, and the scalpel can easily cope with this problem. But if the mutant cells penetrate into organs and tissues located nearby, the body will know for itself what cancer is.
The main danger of this disease is that “wrong” cells can “infect” their healthy neighbors with wrong behavior - that’s why cancer is treated hard, using methods that themselves are dangerous to health. But there is nothing to be done about it: cancer is a disease, the stages of which in most cases are accompanied by severe pain, and without potent drugs a person can die from pain shock. And mutating cells diligently resist destruction - hence chemistry and radiation.
The cause of malfunctioning cells is primarily carcinogenic substances. Some of them (phenol, constituents of tobacco smoke, asbestos) are mutagenic in themselves, while others, in particular alcohol, act indirectly, accelerating cell division.
Some viruses, such as hepatitis, are also a possible cause of cancer.
In fact, radiation is perceived by all known and most terrifying factors. Which is a little strange: not so many people face radiation. Rather, tobacco smoke should be more frightening - 80% of humanity is faced with it.
But the little-known cause of cancer is the food most consumed in a particular region. An example is Japan, where stomach cancer is more common . Or the United States, where bowel cancer is more common . Moreover, when changing their permanent place of residence (that is, changing the diet), new citizens change the risk of their country to the risk of a new homeland.
Well, the last cause of cancer is genetics, hormonal disorders and problems with the immune system (in particular, AIDS).
Having understood for yourself what cancer is, you should not fall into despair when faced with such a diagnosis at home or your loved ones. Courage and resilience work wonders! The medical history “cancer” knows cases when modern medicine, the strength of the human spirit and belief in the best saved, it happened, and hopeless patients.