In my impression, when I was a child, I rarely heard that someone died of cancer; However, when you enter middle age, it is terrible to observe this phenomenon. It was found that nine times out of ten the old people who died were cancer. Of course, this may be related to environmental changes; It may also be related to the previous medical level and different interests when I was a child. But it is an indisputable fact that cancer is more common in the elderly. Why?

Let's learn about cancer first. For example, cancer is like a gangster to our body. He used to be a good boy with normal cells. However, due to various reasons, a few normal cells have become cancer cells. Cancer cells are particularly adaptable to the new environment, and they will quickly replicate themselves, forcing peripheral blood vessels (supplying nutrition), regardless of the life and death of the whole system, just like the underworld.

Will our bodies resist? Of course there is. The body also has its own garrison, which is an immune protection system. When normal cells become cancer cells, one immune system will kill one, but when cancer cells keep popping up and the immune system can't eradicate them, the situation is dangerous; In the end, the immune system may fail completely and even be hijacked by cancer cells. At this time, people will get cancer.

In other words, there are two key factors in the emergence of cancer: one is genetic mutation, and the other is immune failure (no one cares if the bad guys come out). So when are we most likely to get cancer? Quite simply, it is the time when gene mutation and immune failure are the most serious, and for most people, it is the time to get old.

The older you get, the more genetic mutations you accumulate in your body, the weaker your immune system, and the worse your body's ability to clear cancer cells. The statistical results of big data in the medical field also show that the incidence of cancer is highly correlated with age. Therefore, with the increase of life expectancy, the incidence of cancer is getting higher and higher, which is an inevitable trend. Cancer is mostly senile disease, which is the product of gene mutation in the natural aging process of human body.

Just as we can't stop wrinkles and presbyopia, we can't completely stop gene mutation, so it's not realistic to completely eliminate cancer. We just need to pay attention to prevention and treatment.

The most common cancers in China are: liver cancer, esophageal cancer, cervical cancer, gastric cancer and nasopharyngeal cancer. The medical profession, also known as "poor cancer", has a particularly high incidence in developing countries. First, because of virus or bacterial infection (environmental pollution); The second is related to eating habits (such as * * * rice).

It is very important for individuals to cultivate healthy eating and exercise habits. For example, eating alone can effectively reduce the spread of Helicobacter pylori, which can cause gastric cancer. Not eating too hot food can prevent esophageal cancer, and eating less pickled food can prevent nasopharyngeal cancer and gastric cancer at the same time. Not to mention exercise. Studies have found that keeping a certain amount of physical exercise can reduce the incidence of more than ten kinds of cancers, and it is a good habit to exercise for 6 to 10 hours a week.

It is also important to have a positive and sunny attitude, early diagnosis and early treatment. Under the current conditions, cancer cannot be extinct; The actual treatment goal is to turn cancer into a controllable disease like a chronic disease, with less harm to the human body. At present, researchers have developed drugs and treatments with less side effects, and the medical level will be higher and higher in the future.

Note: The knowledge in this article refers to cancer. New knowledge.

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