Release date: 2015-07-02
In this article, I would like to offer my mom and dad, my loved ones, and my good friends, I hope to give you a reason to quit bad habits, pay attention to diet, strengthen exercise, and everyone has a healthy body.
Cancer research is very hard-burning. In the past few decades, governments have invested heavily in research institutions, and countless researchers have worked hard to get a good job of cancer. I am also one of them.
But the fact is that nearly $100 billion in investment has not brought much breakthroughs. At present, most cancers are fatal except for a few cancers that are particularly sensitive to radiotherapy and chemotherapy and whose causes are very clear.
Preventing cancer can be much easier than treatment. Today, let me talk about how the tumor is formed, and the corresponding prevention methods. I hope that you will gain something after reading it. .
Why do you get cancer?
The human body is made up of cells, and different cells function differently. Most of the cells are also old and sick, and need to be constantly updated to achieve their own balance.
However, there are a special group of cells that are distributed in various organs and tissues of the body and can be transformed into cells of various functions. These special cells are called "stem cells."
They are responsible for the organization's renewal and repair. For example, if you cut the skin on your hand, the stem cells in the skin will react immediately, proliferate, differentiate and turn into various skin cells to repair the wound.
This process is tightly regulated, and some genes responsible for dividing proliferation (pro-oncogenes) are briefly turned on, so that usually quiet stem cells can be rapidly expanded, and wounds or tissues that need to be renewed will be repaired as soon as possible. Once repaired, these genes are immediately shut down, preventing stem cells from losing control.
But in some cases, such as genetic mutations, some open cancer-promoting genes cannot be turned off. The consequence is that some stem cells continue to grow, but they are unable to complete the differentiation task.
This situation also occurs in healthy people, but it is not terrible. Because the cell regulation mechanism is multifaceted, there is a mistake and a backup plan.
For example, there are some tumor suppressor genes in stem cells. These genes are very important. They constantly monitor the abnormalities of cells. If there is a mutation in the cancer-promoting gene, the tumor suppressor gene will order the life of the cell to be terminated. As a result, those seemingly out of control. The cells will die by themselves.
These moments of struggle happening in our bodies are all going on, although we can't feel it at all. In very rare cases, genetic mutations occur in the tumor suppressor gene itself, causing them to lose their function. In more extreme cases, a cell has a cancer-promoting mutation, and the tumor suppressor gene is unfortunately Lost function, then unfortunate things are likely to happen. But in any case, the emergence of cancer cells is extremely rare.
Is tobacco and alcohol related to cancer?
Cancer mutations occur as small-probability events, but if you smoke or drink regularly, this is not the case.
Cigarettes and alcohol kill many cells in the respiratory and digestive systems. As a result, nearby stem cells are active for a long time, constantly turning on oncogenes to repair damaged tissues, and toxic substances and alcohol in smoke can damage DNA. , leading to genetic mutations, which further increases the probability of tumor formation. The original small probability event is not so small after such a toss.
Chronic inflammation should be valued
Long-term inflammation and infection also cause tissue to be repaired repeatedly, and stem cells are repeatedly activated, increasing the probability of developing a tumor. Therefore, if there is inflammation and infection, they should be cured as soon as possible to avoid the occurrence of chronic inflammation.
On the other hand, many viral infections can cause genetic mutations while destroying cells, increasing the probability of cancer, such as hepatitis B virus (HBV), HPV, EBV, and HIV. So if it is a susceptible population of certain viruses, then you should get vaccinated as soon as possible.
Aspirin has become a star drug in recent years. It was originally used to treat headache brain heat, and later found to have a significant preventive effect on cardiovascular disease in the elderly. Later, it was found that long-term use of low-dose aspirin can inhibit chronic inflammation, and the risk of lymphoma in the elderly who insist on taking the drug is much smaller.
A sufficient amount of vitamins can prevent cancer
A healthy lifestyle can also make cancer a small probability event smaller.
The first is to get enough vitamins.
Vitamins are essential for maintaining the normal function of cells, and cells are much less likely to mutate in a healthy state.
Vitamin A can help stem cells to differentiate properly and is especially important for preventing tumors;
Vitamin B is a coenzyme of cell energy metabolism, because the multi-functionality in cells requires energy, including the effective repair of DNA, so effective energy metabolism can keep cells healthy and stable;
Vitamins C and E have antioxidant effects because the damage of DNA in cells is often due to the action of oxygen free radicals, which can neutralize these destructive molecules and reduce the possibility of mutations;
Vitamin D has also been found to have an anti-cancer effect.
It should be pointed out that most of the vitamins in the fruits and vegetables are much higher than the meat, and the vitamins in the coarse grains are many times higher than the fine grains. Excessive consumption of animal protein is thought to cause cancerous changes such as colon cancer.
Of course, meat is not something that can't be eaten, but it is not necessary for people and vegetables. Therefore, it is necessary to eat less and eat more fruits and vegetables and coarse grains.
Keep exercising to prevent cancer
Sticking to exercise can prevent cancer.
I need to talk about some immunology here. As mentioned above, cell cancer is accompanied by activation of oncogenes and inactivation of tumor suppressor genes, but even if a person has cancer, it does not necessarily have cancer, because we have a strong immune system.
Our immune system usually knows what is normal cells, what is abnormal, and a virus-infected cell is immediately detected and killed. Similarly, mutated cancer cells are also likely to be recognized and cleared by immune cells.
Then why are there tumor cells leaking, why are there cancers?
There are two problems involved here. First, some cancer cells are mistakenly recognized as normal cells by the immune system. This situation can only be unlucky, but I think this probability is particularly small.
Another more important reason is that the immune system and cancer cells are in a race for a while. The immune system is activated and the rate of action may not be as fast as the proliferation of tumor cells. In other words, when the T cell is killing, it is found that it has not been killed.
This has a lot to do with a person's immunity.
The role of physical exercise in this area can not be ignored, physical exercise can not only increase the number and vitality of immune cells, but more importantly, it can speed up the blood and lymph circulation, and accelerate the opportunities for immune cells to function.
For those who regularly participate in physical exercise, and those who sit in front of the computer all day long, the gap between blood and lymph circulation is very large, and this gap often determines whether the immune system can successfully treat the tumor in the first place. The cells are killed in the germination stage.
Once the tumor grows out of control, the immune cells will not only kill the tumor cells, but also become an accomplice to the tumor. They will stimulate the formation of tumor blood vessels, thereby providing more oxygen and nutrients to the tumor, and also secreting Growth factors help the tumor grow longer. Even more frightening is that they can also help the tumor to move around, and at that time I am afraid that everything is late. This is why the battle between the immune system and the tumor is a matter of time.
In summary, a tumor cell grows into a fatal tumor, not only to accumulate oncogene mutations, escape from the monitoring of tumor suppressor genes, but also to escape the immune system's pursuit of interception, it is not easy, after many difficulties and not die, it must be unusual, It also explains why cancer is easy to treat and easy to treat.
I hope that the friends who saw this article can act, adhere to good living habits, and strengthen physical exercise, because health is priceless and an important guarantee for our happy life!
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Past issues:
More readers*: Does thyroid cancer affect pregnancy?
Pineapple: Like most cancers, thyroid cancer itself does not affect pregnancy, and most children born will not have a higher risk of cancer. I know a lot of cancer patients, and I will get pregnant after the treatment, and give birth to a healthy baby. But everyone is different, please discuss with your doctor. From a scientific perspective, Pineapple suggests two areas of particular concern for thyroid cancer patients:
1: Try to get pregnant again after a period of treatment (more than 1 year), especially if chemotherapy or iodine 131 is used. In this respect, physical recovery is better. On the other hand, radioactive iodine 131 will remain in the body for a period of time, which may affect the fetus.
2: A small fraction of patients with medullary thyroid carcinoma is hereditary, with a mutation in the RET gene. If it is determined to be hereditary medullary thyroid carcinoma, if the patient is pregnant after treatment, it is recommended to perform a RET test on the newborn (there is a 50% chance that the child will not inherit the mutation). This will correctly assess the child's risk of developing thyroid cancer and be prepared (preventively remove the thyroid gland after adulthood).
Source: Bio-Exploration
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