Cancer is a group of excessively proliferating cells that does not obey the growth rules of normal cells. Therefore, when it grows to a certain degree, it will continue to grow and form a lump, which will cause pressure on the adjacent tissues and cause symptoms. Although some benign tumors will also grow very large, it will not metastasize, so another feature of cancer (that is, malignant tumor) is that it will metastasize everywhere, and this metastasis is often before the cancer or before clinical diagnosis. Today we will discuss about the top 27 facts about cancer in this article.
2. During individual development, most cells can normally complete cell differentiation. However, due to the effect of carcinogenic factors, some cells cannot normally complete cell differentiation, and thus become malignant proliferating cells that continue to divide without being controlled by the body. Such cells are cancer cells.
3. Cancer can be hereditary. In fact, 5-10% of cancers are hereditary. Most cancers are formed through the interaction of genetic and environmental factors, including smoking, alcoholism, obesity, and diet.
4. Tobacco use is the single largest preventable cause of cancer worldwide, causing approximately 22% of cancer-related deaths. A cigarette contains about 4,800 chemical substances, at least 250 are harmful substances, and nearly 70 carcinogens.
5. There are more than 200 different types and subtypes of cancer in the world.
6. Cancer is the second leading cause of death worldwide, with 9.6 million deaths in 2018. Worldwide, one in every six deaths is caused by cancer.
7. Lung cancer is the fastest growing morbidity and mortality rate in the world, and the most threatening human health and life threatening malignant tumor.
8. Breast cancer is the most common form of cancer among women, and it is the second leading cause of death for women after lung cancer.
9. For breast cancer, the left breast is more common than the right. The incidence of breast cancer on the left is 5-10% higher than that on the right, and the incidence of melanoma on the left is 10% higher than that on the right. There is no clear explanation for this.
10. Not only women, men can also develop breast cancer.
11. More than half of cancer cases and up to half of cancer deaths can be prevented. This means that 2.4 million to 3.7 million deaths per year can be avoided.
12. Breast cancer patients insist on physical activity after diagnosis can reduce the risk of breast cancer death by 34% and the risk of breast cancer recurrence by 41%.
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13. There are more than 28 million cancer survivors worldwide, a fact that indicates that research in the field of cancer is constantly improving.
14. Breastfeeding can reduce a woman's risk of cancer by 20%.
15. The most serious single-source cancer in human history was the Chernobyl nuclear accident. 270,000 people suffered from cancer and other diseases due to the Chernobyl nuclear accident.
16. In the world, the total number of malignant tumors among men aged 0 to 75 years old is 30% higher than that of women.
17. The probability of suicide increases by 20% within six months after the cancer is diagnosed, and the probability of suicide in some cancers is greater. Male patients are more likely to commit suicide.
18. There is a significant correlation between height and cancer risk. Higher women tend to be more susceptible to cancer. One possible mechanism is that a factor in the developmental stage not only leads to higher growth, but also lays hidden dangers for future cancer. Rather, there are more tall somatic cells and stem cells, and the mutation of a certain cell in the body is more likely to accumulate into cancer.
19. Low- and middle-income countries are the countries most affected by cancer, with at least 70% of cancer cases occurring in low- and middle-income countries.
20. In 2012, cancer-causing infections accounted for 25% of newly diagnosed cancer cases in low- and middle-income countries. Human papillomavirus causes cervical cancer, and hepatitis B virus causes liver cancer. Vaccination against these two viruses can prevent 1.1 million cancer patients every year.
21. In 1804, the world's first general anesthesia operation was performed on a woman with breast cancer.
22. With the improvement of treatment methods, cancer is no longer a mortal disease. There are currently 28 million cancer survivors worldwide.
23. Certain types of cancer, such as male testicular cancer, also produce human chorionic gonadotropin (hCG). In other words, with early pregnancy test paper, it is possible to detect testicular cancer (but not all testicular cancer will increase hCG).
24. The first documented mastectomy occurred in 548 AD. The patient was Theodora, who was the Byzantine empress at the time.
25. Japanese scientists have trained a black labrador dog to sniff people's breath to determine whether the other party is a patient with colorectal cancer. Through research, it is found that the accuracy rate of dogs sniffing out cancer patients is as high as 98%.
26. The incidence of breast cancer on the left breast is significantly higher than that on the right breast. Scientists have not yet found a reasonable explanation. Moreover, scientists have also found that left-handed women are more likely to develop breast cancer.
27. On average, cancer cells double every 100ys. In other words, it takes at least 10 years from a cancer cell to be detectable (1cm diameter).
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27 Important facts
1. The word "cancer" comes from the Latin word "crab". In the early days, when doctors described certain morphology and growth patterns as tumors with extensions from a subject, because they looked like crabs, they described these tumors as crab-like or "cancerous". The word crab has always been used, and it has evolved into cancer in English. To date, some cancer journals and societies still use crab as a symbol.2. During individual development, most cells can normally complete cell differentiation. However, due to the effect of carcinogenic factors, some cells cannot normally complete cell differentiation, and thus become malignant proliferating cells that continue to divide without being controlled by the body. Such cells are cancer cells.
3. Cancer can be hereditary. In fact, 5-10% of cancers are hereditary. Most cancers are formed through the interaction of genetic and environmental factors, including smoking, alcoholism, obesity, and diet.
4. Tobacco use is the single largest preventable cause of cancer worldwide, causing approximately 22% of cancer-related deaths. A cigarette contains about 4,800 chemical substances, at least 250 are harmful substances, and nearly 70 carcinogens.
5. There are more than 200 different types and subtypes of cancer in the world.
6. Cancer is the second leading cause of death worldwide, with 9.6 million deaths in 2018. Worldwide, one in every six deaths is caused by cancer.
7. Lung cancer is the fastest growing morbidity and mortality rate in the world, and the most threatening human health and life threatening malignant tumor.
8. Breast cancer is the most common form of cancer among women, and it is the second leading cause of death for women after lung cancer.
9. For breast cancer, the left breast is more common than the right. The incidence of breast cancer on the left is 5-10% higher than that on the right, and the incidence of melanoma on the left is 10% higher than that on the right. There is no clear explanation for this.
10. Not only women, men can also develop breast cancer.
11. More than half of cancer cases and up to half of cancer deaths can be prevented. This means that 2.4 million to 3.7 million deaths per year can be avoided.
12. Breast cancer patients insist on physical activity after diagnosis can reduce the risk of breast cancer death by 34% and the risk of breast cancer recurrence by 41%.
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13. There are more than 28 million cancer survivors worldwide, a fact that indicates that research in the field of cancer is constantly improving.
14. Breastfeeding can reduce a woman's risk of cancer by 20%.
15. The most serious single-source cancer in human history was the Chernobyl nuclear accident. 270,000 people suffered from cancer and other diseases due to the Chernobyl nuclear accident.
16. In the world, the total number of malignant tumors among men aged 0 to 75 years old is 30% higher than that of women.
17. The probability of suicide increases by 20% within six months after the cancer is diagnosed, and the probability of suicide in some cancers is greater. Male patients are more likely to commit suicide.
18. There is a significant correlation between height and cancer risk. Higher women tend to be more susceptible to cancer. One possible mechanism is that a factor in the developmental stage not only leads to higher growth, but also lays hidden dangers for future cancer. Rather, there are more tall somatic cells and stem cells, and the mutation of a certain cell in the body is more likely to accumulate into cancer.
19. Low- and middle-income countries are the countries most affected by cancer, with at least 70% of cancer cases occurring in low- and middle-income countries.
20. In 2012, cancer-causing infections accounted for 25% of newly diagnosed cancer cases in low- and middle-income countries. Human papillomavirus causes cervical cancer, and hepatitis B virus causes liver cancer. Vaccination against these two viruses can prevent 1.1 million cancer patients every year.
21. In 1804, the world's first general anesthesia operation was performed on a woman with breast cancer.
22. With the improvement of treatment methods, cancer is no longer a mortal disease. There are currently 28 million cancer survivors worldwide.
23. Certain types of cancer, such as male testicular cancer, also produce human chorionic gonadotropin (hCG). In other words, with early pregnancy test paper, it is possible to detect testicular cancer (but not all testicular cancer will increase hCG).
24. The first documented mastectomy occurred in 548 AD. The patient was Theodora, who was the Byzantine empress at the time.
25. Japanese scientists have trained a black labrador dog to sniff people's breath to determine whether the other party is a patient with colorectal cancer. Through research, it is found that the accuracy rate of dogs sniffing out cancer patients is as high as 98%.
26. The incidence of breast cancer on the left breast is significantly higher than that on the right breast. Scientists have not yet found a reasonable explanation. Moreover, scientists have also found that left-handed women are more likely to develop breast cancer.
27. On average, cancer cells double every 100ys. In other words, it takes at least 10 years from a cancer cell to be detectable (1cm diameter).
Continue Reading
1. Top 10 Causes of Cancer Death
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3. What Happens to Your Body when you Work at Night and Sleep During the Day
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