1, the onset of cancer is a long-term chronic process, that is to say, the growth of cancer is not short-term, but a long-term process, and most of the time is as short as ten years and as long as several decades. Under the action of some carcinogenic factors, normal cells change and become cancer cells. Not all cancer cells become a climate, but some are just a flash in the pan and are eliminated by the body's immune system. Even those cancer cells that have a chance to survive will have to undergo many times of division and proliferation before they can grow into visible cancers, that is, they will continue to "have children" from generation to generation. How many generations do you have to reproduce, or how many children do you have to "have" to become? Usually, we take 25px as the boundary, and the cancer of 25px is about 654.38+0 billion cancer cells added together, but from one cancer cell to 654.38+0 billion cancer cells, it will not take a few days or months to grow, but it will take many years, and most of them will take more than ten years or decades. As a result, from exposure to carcinogens, cancer cells of normal cells will become cancer cells, and then a cancer cell will divide and proliferate to 654.33. In addition, even if it is 25px, many people do not pay attention to it. After giving cancer for a long time, it is still undiagnosed. Then think about it, most cancers are discovered and diagnosed at least after forty or fifty years old. Therefore, the high incidence of cancer is after forty or fifty years old, but many cancers do not show up around forty or fifty years old because there may be immune factors.
2. During the period from 40 to 50, if the body's immunity can still inhibit the growth rate of cancer, it may appear at some time. Usually, after entering the age of 60, the immunity of the elderly will decline, or they will pay more attention to some uncomfortable manifestations of the body because of leisure. Anyway, for various reasons, Cancer has a greater chance of "taking the initiative" or showing it or discovering it.
Of course, there may be some non-medical reasons. For example, middle-aged and elderly people after the age of 40 are busy with their work, ignoring the physical examination, or deliberately delaying it and not paying attention. After 60 years old, I have more leisure and pay more attention to my health.
Are there any other reasons? Waiting for you to supplement. ...
We often hear people who have just retired and are diagnosed with cancer, and their words are full of regrets. Then why did cancer break out in his 60 s?
According to the literature, there are 62 kinds of major cancers in the age of 60-70. For example, lung cancer is a malignant tumor with the highest morbidity and mortality in men, and its peak age is between 60 and 79 years old. The average age of esophageal cancer in China is 63 years old, and 80% of them develop after 50 years old. After people are over 40 years old, the incidence rate increases obviously with age, and the peak is 60-65 years old.
We know that the onset of cancer is a long-term and chronic process. Under the action of some carcinogenic factors, normal cells change and become cancer cells. Not all cancer cells become a climate, but some are just a flash in the pan and are eliminated by the body's immune system. Even those cancer cells that have a chance to survive. It takes more than ten years and decades for normal cancer cells to change from contact with carcinogens to cancer cells, and then one cancer cell divides and proliferates to 654.38+0 billion cancer cells. So tumors usually occur in the elderly.
Therefore, with the continuous improvement of life expectancy, in order to avoid the occurrence of tumors, we should develop good living habits, eat a balanced diet, quit smoking and drinking, exercise properly, keep an optimistic attitude and have regular physical examinations. I wish everyone can stay away from cancer and live a happy retirement!
In recent years, the global cancer incidence situation is grim, and the incidence rate and mortality rate are on the rise, which not only affects individuals and families, but also imposes a heavy burden on society. We know that there are many risk factors leading to cancer, including aging, environmental pollution, smoking, unhealthy diet, lack of activity, obesity and overweight. Among them, age is one of the main factors of malignant tumor. With the increase of age, the incidence of cancer increases rapidly. Some people say that cancer often occurs around the age of 60. Is that really the case?
The author thinks that cancer often occurs around the age of 60, and this sentence has some truth. According to the latest data released by the International Agency for Research on Cancer (IARC), the incidence of malignant tumors in the world has been on the rise in the past decade, and the incidence of cancer among people over 60 years old accounts for most of all cancers. The reason why cancer is more common in the elderly around 60 years old, I think this may be related to the following factors:
First, the onset of cancer requires a long incubation period. When the risk factors of cancer act on the human body, they will not cause cancer immediately, but will gradually accumulate in the body and develop into cancer after several years. For example, previous studies have shown that smoking can lead to lung cancer, and nicotine in tobacco can lead to changes in the molecular mechanism of cells, thus causing cell canceration. The change of this mechanism must have enough time to show clinical symptoms.
Second, the elderly around 60 years old, the whole body function declines, the immunity is greatly reduced, and the ability to monitor and remove tumor cells is further reduced. They are easily affected by various external carcinogenic factors such as environmental pollution, and they are more likely to get cancer.
Third, unhealthy lifestyle, ignoring the early symptoms of cancer and delaying treatment due to misdiagnosis are also the main reasons for the high cancer mortality rate of about 60% of the elderly. For example, drinking and staying up late seems to be nothing unusual in the short term at first, but after a long time, it may change from quantitative change to qualitative change, leading to cancer.
abstract
In fact, the occurrence of cancer has nothing to do with age. In recent years, there are countless examples and news about young people suffering from cancer. But a large number of studies have proved that the elderly are indeed more prone to cancer. Therefore, it is recommended that the elderly have a physical examination every six months. For elderly patients in high-risk age groups with carcinogenic risk factors, once they have symptoms such as dysphagia or foreign body sensation, abdominal pain, hemoptysis, fever, chest pain, hematuria, bloody stool, etc. They must not take it lightly. They must go to a regular hospital for examination and treatment as soon as possible. In addition, the treatment of elderly cancer patients needs comprehensive evaluation, making individualized treatment plans, prolonging life as much as possible and improving quality of life.
There is an interesting saying: as long as human beings live long enough, they will definitely get cancer! Because human cells are constantly proliferating and dividing, after enough times, cancer will definitely occur.
With the increase of age, the number of abnormally divided cells will gradually increase, and the ability of immune monitoring will decrease. If it cannot be removed in time, the probability of cancer will gradually increase.
Do middle-aged and elderly people around the age of 60 suffer from cancer?
Yes, this is supported by official evidence!
This is a 70-year-old man who came to the hospital because he didn't like to eat. Results Chest examination showed that lung cancer had metastasized.
According to the statistics of the National Cancer Center, the incidence of malignant tumors increases with age, and it is rare for people under 40 years old. After the age of 40, it rises rapidly, mainly in the 60-year-old age group and reaches its peak in the 80-year-old age group. The annual distribution of different malignant tumors is different.
There are also some old smokers, alcoholics and patients with chronic obstructive pneumonia. With the increase of age and the accumulation of harmful factors, the probability of cell canceration will increase.
The 93-year-old birthday girl found a small nodule in her right lung, which grew up two years later:
At this age, follow-up observation is very good, and there is no hurry to deal with it.
Cancer is a chronic disease. Cancer cells need at least 65,438+00 to 20 years from birth to appearance. Except for a few cancers that occur in childhood (such as leukemia), most of the cancers we know well: liver cancer, lung cancer, gastric cancer, colorectal cancer and so on. They are all senile diseases, so most of them were really discovered around the age of 60.
Judging from the growth process of cancer cells, it is also bumpy all the way. The root cause of cancer is gene mutation. There are more than 100 genes related to cancer in our body. The probability of oncogene mutation and cancer occurrence is related to many factors, such as the number of cell division, the number of gene mutation, the ability of immune clearance, the probability of oncogene and so on. Therefore, it takes a long time for a cancer cell to break through the tight encirclement, expand its own team and respond to the pursuit of the immune system in the body at any time. When it finally has a chance to divide and reproduce quickly and reach the old age of human beings, the elderly are immune.
Do people have to associate with cancer when they are old? Of course not, the occurrence of cancer is closely related to environmental factors and lifestyle, so please do the following when you are young:
(1) Quit smoking, don't do second-hand smoke, do third-hand smoke. According to the data of the World Health Organization, tobacco causes nearly 6 million deaths every year, including cancer. There is clear evidence that smoking can cause 30% cancers, such as lung cancer, bladder cancer, pancreatic cancer, leukemia, colon cancer and renal cell cancer. Quitting smoking and staying away from tobacco can reduce the risk of cancer.
(2) Develop good eating habits. Staple food will increase the proportion of whole grains. Vegetables are mainly green leafy vegetables, eat more cruciferous vegetables, eat more fruits instead of fruit juice, control the proportion of animal food intake, put an end to foods with high salt, oil and sugar, don't drink too much, eat three meals regularly, and don't overeat or eat spicy food. Many people say that cancer is a disease caused by stuttering. Although unscientific, it also vividly says that cancer is closely related to eating habits.
(3) Maintain a healthy weight and maintain a dynamic diet balance. Obesity is a metabolic disease, which has an upward trend in recent years, especially among children and adolescents. Obesity is not only the inducing factor of cardiovascular and cerebrovascular diseases and diabetes, but also increases the risk of many cancers, such as breast cancer, colorectal cancer, lung cancer and prostate cancer. Saying goodbye to Ge You's lying down, not making couch potatoes and managing your weight can reduce the risk of cancer.
The incidence of cancer is the same as other diseases, so no matter whether the age of 60 is the outbreak of cancer, we should develop a good lifestyle and eating habits to reduce the incidence of cancer. Cancer prevention is a lifelong task.
(Head nurse Wang Fang, national first-class public nutritionist, national health manager, founder of Good Food Nutrition Studio, and student of the fifth special nutrition training class in Wang Xingguo)
Cancer often occurs in middle-aged and elderly people. For example, our common cancers such as lung cancer, liver cancer, colorectal cancer, breast cancer, esophageal cancer and so on. From the age of 40 to 50, the incidence rate gradually increased, reaching a peak at the age of 60 to 70. However, this is not absolute. Some tumors are prone to children or adolescents, such as osteosarcoma, germinoma, retinoblastoma, Ewing's sarcoma, leukemia and so on.
For most cancers, why does the incidence rate reach the highest after middle-aged and elderly people?
Mainly because carcinogens act on everyone, it takes a long time to cause cancer in the body. Most carcinogens cause cancer in a certain dose and time. Common carcinogens, such as X-rays, toxic and harmful chemicals, ultraviolet rays, hepatitis B virus, Helicobacter pylori, etc. It takes a long time to act on the human body, slowly causing abnormal proliferation and finally leading to cancer.
Taking liver cancer as an example, it takes a long time for hepatitis B to infect first, then cause liver fibrosis and cirrhosis, and finally lead to liver cancer.
Of course, it is not absolute. As we said before, some cancers or tumors are very common in children, and these tumors are obviously related to genetic abnormalities. Patients with genetic mutations or genetic abnormalities are more likely to develop tumors, and the time of getting cancer is often earlier than the general onset age.
The above is the general law of cancer. Finally, Dr. Zeng wants to remind everyone not to think that cancer is the patent of the elderly, and young people may also suffer from cancer. There are not a few young people suffering from cancer. We often see young people in their twenties and thirties suffering from gastric cancer, colorectal cancer, breast cancer and so on. Therefore, young people should also have regular physical examinations. If they feel unwell, they must seek medical treatment as soon as possible.
I'm Dr. Xiaoying. Cancer mostly occurs around the age of 60? The occurrence of cancer has a great relationship with age, and different cancers have different ages. Generally speaking, middle-aged and elderly people are more likely to get cancer. Common rectal cancer, lung cancer, breast cancer, liver cancer, etc. Both occur in middle-aged and elderly people, especially 40-70 years old. The occurrence and development of cancer is the result of many factors, and it takes some time to progress, so many of them are mostly middle-aged and elderly people.
Why is cancer so common now? One of the reasons may be that the average life expectancy is increasing. In old age, people's various physical functions begin to decline, and their immunity also declines. Normal cells are more likely to mutate into cancer cells, and their immune function cannot be detected and killed in time, leading to cancer. Therefore, cancer is more common in middle-aged and elderly people.
But this does not mean that young people and children will not get cancer. At present, the occurrence of cancer tends to be younger. I have seen 17 years old with systemic metastasis of gastric cancer and 20 years old with advanced lung cancer.
Young people also have a great relationship with cancer, and children and adolescents also have malignant tumors that are prone to occur. For example, a 2-year-old child with a space occupying liver should first consider hepatoblastoma, which is a highly malignant tumor. However, if a 50-year-old middle-aged person finds a space occupying liver, the possibility of liver cancer should be considered first.
The picture above shows a colleague's nephew, a clever one-year-old child. He accidentally took a bath and found his abdomen hardened. He felt a lump and went to see a doctor, only to find that his liver had a tumor of 10cm. The first thing that comes to mind is hepatoblastoma. Unfortunately, there are multiple metastases in both lungs. Half a year later, the baby left, and had not had time to experience the ups and downs of the world.
Another example is osteosarcoma, which is the most common bone malignant tumor in young people. The degree of malignancy is high and the survival rate is low. But middle-aged and elderly people, 60-year-old people, don't grow osteosarcoma very much.
Therefore, different cancers have different onset ages, such as liver cancer, rectal cancer, lung cancer, ovarian cancer, cervical cancer, etc., which are common in middle-aged and elderly people, embryonic malignant tumors in children, osteosarcoma in young people and so on.
First of all, I disagree with this statement. According to statistics in recent years, the age of cancer outbreak should be 40 years old. Before the age of 40, the incidence of cancer was very low, but after the age of 40, the incidence of cancer rose linearly. According to the latest national data of 20 17 years, the incidence of cancer reached the highest value at the age of 85.
This situation has a lot to do with the cause of cancer. The essence of cancer is the variation of cells. Generally speaking, every time a cell divides, the chance increases. Moreover, with the increase of cell division, the activity of sweet cells will generally decrease, leading to an increase in the probability of mutation.
Moreover, there is no need to worry about the formation of cancer cells. Our bodies and police are patrolling to catch bad cells. This policeman is the body's own immune system. As long as the immune system finds something different from normal cells, it will try to kill each other, thus protecting us from cancer. When young, cells have strong vitality and high basal metabolism. If you kill cancer cells, the speed of division will destroy them. Only when cancer cells are not recognized by the immune system, or as I said above, the production speed is faster than the elimination speed, it means that you have cancer. This is an important reason why the primary cancer is very low before the age of 40.
Another thing that cannot be ignored is that cancer is not formed in a day. This is a long process. Modern medicine needs a certain number of cancer cells to detect cancer. About 654.38 billion cancer cells can only be diagnosed as cancer if they are gathered together. And this can't be formed in a day or two.
Therefore, my articles often encourage people over the age of 40 to do appropriate cancer screening. Learn more about the early reaction of cancer. After all, the cure rate of 1 is still acceptable in most cancer stages or stages 2.
Xiao Yuntao, captain of Nutrition Pirate (national second-class nutritionist, member of Nutrition Society, lecturer of Dalian Nutritionist Club, nutrition ambassador, good at office worker nutrition and tumor nutrition).
As far as I know, there are quite a few people who get cancer around the age of 40. It is rarely heard that the elderly will maintain and preserve their health for many years.
Maybe it's the pressure of life, maybe it's irregular diet, lack of sleep, lack of exercise and so on. Some cancers tend to be younger, such as breast cancer, colorectal cancer, thyroid cancer, etc., but statistics show that the proportion of common cancers before the age of 40 is still very small, and cancer is high in people over 60.
In the process of cell division, DNA is copied and pasted like a computer file. Once, several times, dozens of times may not be a problem, and hundreds or thousands of times may lead to data loss. When DNA is misreported or not regulated, the gene mutates, which is the mechanism of cancer cell formation at the gene level. The more copies, the greater the chance, that is, the older the gene, the more prone to mutation, which is one of the reasons for the high incidence of cancer after the age of 60.
The mutation of proto-oncogene and inactivation of tumor suppressor genes are mostly stimulated by external environmental factors. At present, it is considered that the carcinogenic factors will last for 15-25 years before the results can be obtained. For example, if someone smokes 400 cigarettes a day, it is natural that the incidence of lung cancer is high over 60 years old. Colorectal cancer mostly comes from adenoma. It takes many years for intestinal mucosa to be stimulated to form adenoma, and it takes 5- 15 years for adenoma to become cancerous. Cancer is also a long-term accumulation process, and many of them have causes and effects. The external stimulus process is also the reason for the high incidence of cancer after the age of 60.
The necessary conditions for tumor formation have to escape the recognition and pursuit of the immune system. The fighting capacity of the immune system is not as good as before, and there is a potential situation that the enemy is strong and we are weak, which is also an objective factor for the high incidence of cancer in the elderly.
Cancer is an objective cause and there is no way to change it. What we can do is to reduce all kinds of external environmental stimuli and avoid long-term and large-scale stimuli. It is also useful to do some cancer screening over 40 years old. Early detection, early diagnosis and early treatment are relatively better. I'm Dr. @ Liu Yongyi, thank you for reading!