1. Middle-aged and elderly
        Specifically, people over the age of 40 or 50. In a sense, cancer is a "geriatric disease." It mainly occurs in middle-aged and elderly people, especially the elderly. Although a bit extreme, it makes sense: "As long as If you live long enough, you will get cancer sooner or later." Age can be said to be one of the main risk factors for cancer. Therefore, when the doctor asks for a medical history, he will definitely ask your age, which is very valuable for the doctor to perform diagnostic analysis.
        Why is it said that cancer mainly occurs in middle-aged and elderly people? Because cancer does not grow up in a day, it takes a long time from normal cell "mutation" to cancer cell, which continuously divides and proliferates into cell clusters, to "visible" diagnosable cancer nodules, usually several years. , Or decades. If a certain carcinogen (such as the carcinogen in smoking smoke) acts on the human body, you have been smoking since your teens or twenties, then you will be in your forties for ten or twenty years or more. It looks like, middle-aged and old, you have entered the period of highest risk of lung cancer, so you will see that many people have lung cancer diagnosed at almost this age. In general, cancers are dominated by middle-aged and elderly people. Of course, cancers now tend to be younger.
 
2. People with bad "hobbies"
        Specifically, it is a bad lifestyle, bad eating habits, bad mentality, etc. This is the aspect that should be the most concerned, because most of the factors in this area can be "controlled". In many cases, cancer may be What you “provoked” yourself was what you “made” yourself.
        For example, the commonplace question: smoking (including second-hand smoke and even third-hand smoke) is a clear high-risk factor for a variety of cancers, increasing the risk of a variety of cancers, the most important of which is lung cancer.
        The other is also a commonplace question: drinking. Drinking alcohol can also increase the risk of a variety of cancers, such as liver cancer, oral cancer, throat cancer, esophageal cancer, and stomach cancer. Of course, you don’t have to worry too much about drinking once or twice. Some people often argue that drinking alcohol causes cancer. Some people say that drinking has this and that benefit. This is actually similar to those who smoke, who say that smoking has this and that benefit. In fact, many bad habits cannot be said to have no "benefits" at all. "Benefits" are actually the so-called psychological satisfaction. Many delicious "goodies" are harmful to your health. It is worth mentioning that, drinking and smoking make mistakes. The carcinogenic chemicals in the smoke are easily dissolved in alcohol and accelerate the absorption of carcinogens into the blood, which can be described as toxic.
        Smoking and drinking are the two most representative factors. In fact, there are many other factors in this regard, such as: people who often stay up late and shift shifts, people who do not like meat (red meat and processed meat), and a taste for high sugar People who eat sweets, people who lack exercise, people who are promiscuous, people who have certain bad eating habits (eating is uncontrolled and irregular, eating sea and drinking, overeating, like eating all kinds of fried, grilled and pickled foods , Like to eat salty food, hot food, not paying attention to dietary hygiene, etc.), people who are obese and overweight, people who have been depressed for a long time and have not been released...
 
3. People who live or work in areas with a high incidence of cancer
        This mainly involves carcinogenic factors in the environment. In some areas, due to environmental pollution (air pollution, soil pollution, water pollution, etc.), people living here are relatively at higher risk of cancer. In addition, certain occupations require frequent or long-term exposure or exposure to certain carcinogenic risk factors, and their cancer risk is relatively high.
        Carcinogenic factors in living or working environment, which to some extent cannot be changed by individuals, unless they move out of this place or change jobs. Of course, as long as it is an environmental factor, it is not unchangeable. The governance of the environment is mainly from the social level. This is not a day’s work, but as an individual living in it, if everyone can start from themselves, they can also do something for themselves. The improvement of the environment makes their own contribution, everyone is irrelevant, and everyone suffers in the end. As for the working environment, we must pay attention to occupational protection. Similarly, these high-risk groups must also take the initiative to screen for cancer.
 
4. People with a family history of cancer
        A family history of cancer is not simply thinking that a few people in the family have had cancer or have a family history, but that your relatives, especially your direct blood relatives, have had cancer (especially the age at the time of cancer). Light), then you may carry certain cancer-related unstable or defective genes, and you are born with a greater risk of certain cancers. And if there are multiple people in your family who get cancer one after another or at the same time, but they are not related by blood, such as between husband and wife, between husband and wife, wife-in-law, aunt-in-law... there is no blood relationship, they have cancer, especially cancer. They are all older at the time. In this case, we have to reflect on life and eating habits. Due to long-term living together, they have similar bad lifestyles and eating habits.
        If it is confirmed that they are indeed people with a family history of certain cancers, then it can be said that this is congenital weakness. Under the same conditions, these people have a higher risk of cancer. This is something we cannot change, but it does not mean We can only resign ourselves to fate, but we should do well in the following two aspects: First, we must stay away from bad lifestyles and eating habits. You are not a rich second generation. If you don’t work hard, then you will be worse. No one’s fate. "Okay, don't learn from others' "willfulness"; the second is to take the initiative to screen for related cancers.
 
5. "Unlucky" people
        This sounds a little weird. Is there really luck in not having cancer? Don't say it, it's possible. Luck is random. Specifically, basic cancer-related mutations happen randomly, happen to you, and also happen to me, he, but someone else’s is just a "flash in the pan" and then repaired, and yours, nothing It is repaired and accumulated, and eventually you will get cancer. You may not have bad lifestyle and eating habits, your living and working environment is fine, and there is no family history of cancer, but you have cancer, that is to say, cause you to get cancer. The mutation of the cancer gene is not caused by environmental carcinogenic factors, nor is it due to genetic instability or defects inherited from birth. It is just that some random mutation has occurred, and you can’t catch up. There is no way, "bad luck". . This kind of situation can only be blamed on "luck". Of course, this is also the view of some current studies for the time being, but it may not be able to find the real "reason" behind it, and it may not be really random bad luck.