“Why did I have cancer? Why did God do this to me.”

“Looking back on the past 30 years of my life, what have I done? I’m going to punish me with cancer.”

“I really don’t want to die, I never thought I would get cancer one day.” p>

…..

Xiao Ai has heard the voices of many cancer friends after cancer. In fact, cancer is not far away from everyone. According to the world Statistics of the World Health OrganizationIn 2020, there will be 4.57 million new cases of cancer in China, and the number of deaths will exceed 3 million, and the real culprit that causes cancer may be hidden from everyone.

First, 4.57 million people in China suffer from cancer every year, and carcinogens should be kept away

< p>After a lot of scientific research, the International Center for Research on Cancerunder the World Health Organization has identified many carcinogens, potential carcinogens According to the strength of carcinogenic evidence, they are divided into four grades, a total of 5 categories:

Class 1 carcinogens: strong>

means that there are sufficient medical evidence, animal experiments have proved to be carcinogenic substances, which have been 120 substances are listed as Class I carcinogens;

Class II Class A carcinogens:

means veryprobably carcinogenic to humansbut lack of sufficient experimental evidence, and there is clear evidence in animal experiments that it appears to be carcinogenic, currently known 81 substances are classified as class 2 class A carcinogens;

class 2 class B carcinogens:

Refers to substances for which there is insufficient evidence of carcinogenicity to humanshumans and animals. There are currently 299 known substances that are classified as Class 2 B

Grade 3 carcinogens:

refers to yet Can not determine whether it is carcinogenic to humansSubstances, currently known to have 502 substances belong to this ranks;

Class 4 carcinogens:

refers to substances that are probably not carcinogenic to humans. Currently, only caprolactam belongs to class 1 carcinogens.

It can be clearly seen that the primary carcinogen is the most definite carcinogen at present, Follow Xiao Ai to learn about some common first-class carcinogens in our lives. It is very likely that you are exposed to these substances every day.

Second, revealing the most common primary carcinogens in daily life

1. Primary carcinogens that are easily eaten

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①Chinese-style salted fish

Chinese-style salted fish needs to be added during the production process Pickled with high concentrations of salt, which produces a lot of nitrite. After entering the body, nitrite is converted into nitrosamines in the acidic environment of the gastrointestinal tract, and nitrosamines are strongly carcinogenic It is easy to induce esophageal cancer, gastric cancer and other cancers.

②Acetaldehyde-Alcohol

After alcohol enters the human body, it will go through a series of The complex metabolic process of acetaldehyde is easily converted into acetaldehyde in the process, and acetaldehyde stays in the body and has strong carcinogenicity, not only can and DNA binding in the body induces genetic mutations. It will also lead to normal cell apoptosis in the body, induce chronic inflammation, and cell replication, and these factors will indirectly and directly induce cancer.

③Aflatoxin – moldy food

Aflatoxin is the current One of the strongest known carcinogens, 1mg can cause cancer and a single ingestion of 20mg can cause the death of an adult. Aflatoxin likes to hide in moldy foods, especially those with high starch content, including peanuts, corn, nuts, etc. Once these foods become moldy and bitter, they should be discarded in time to avoid accidental ingestion of aflatoxin .

④Benzopyrene – BBQ Food strong>

Benzopyrene is the most toxic type of polycyclic aromatic hydrocarbons. It can enter the body through inhalation, ingestion and skin absorption. Most of the benzopyrene enters the body. It needs to be converted into a variety of metabolites under the activation of oxidase in liver and lung cells, which in turn causes damage to genes. Failure to repair in time can easily lead to cancer. Benzopyrene is common in cigarette smoke, car exhaust, smoked grills, and high-temperature cooking.

2. Class I carcinogens that are easily contagious

①Helicobacter pylori

Helicobacter pylori is one of the main causes of gastric cancer, and clinically63.4% of gastric cancer is due to infection with Helicobacter pylori. In the natural environment, humans are the only source of infection of Helicobacter pylori, which can be transmitted mainly through the fecal-oral, oral-oral, and stomach-oral routes.

②HPV virus

2014, HPV (Human Papillomavirus) 16, 18 , 31, 33, 35, 39, 45, 51, 52, 56, 58, 59 types are classified as first-class carcinogens. According to the data published by the Chinese Journal of Science, 99% of cervical cancer cases are caused by HPV infection, and the main route of HPV transmission is sexual Behavior. In addition to sexual behavior, indirect sexual contact such as contaminated bath towels and bathtubs may also lead to HPV infection.

③Hepatitis B virus

China has always been known as a “big country with liver disease”,< /span>About 80% of liver cancer patients in my country are related to hepatitis B. After being infected with hepatitis B, if there is no timely intervention, it may gradually evolve into a trilogy of liver cancer: hepatitis – liver cirrhosis – liver cancer. The transmission of hepatitis B mainly includes blood, mother-to-child and sexual transmission. For example, unprotected sexual behavior with hepatitis B patients, daily blood transfusion/brow tattooing and other traumatic behaviors are not properly disinfected, etc., which may cause infection.

3. Class I carcinogens that are easily inhaled

①, Tobacco

The smoke of tobacco burning contains more than 7000 compounds, Hundreds of harmful substances, whether from first-hand, second-hand or third-hand smoke, can seriously threaten your health. Long-term inhalation of tobacco smoke can accelerate gene damage and prevent gene repair, which can lead to cancer.

②, formaldehyde

Formaldehyde is a toxic and irritating gas. It is also one of the potential strong mutagens with strong carcinogenic and cancer-promoting effects.Long-term exposure to low-dose formaldehyde may induce nasopharyngeal cancer, colon cancer and leukemia . In inferior decoration materials, the phenomenon of formaldehyde exceeding the standard is very common.

Seeing this, many people feel frightened. Carcinogens are everywhere in life. Can’t they escape? Should I just wait for cancer to come to my door?

Three, carcinogens are everywhere in life, what should I do?

Xue Yan, deputy director of the Department of Oncology, Xijing Hospital, Fourth Military Medical University said that exposure to carcinogens does not necessarily lead to cancer,< /span>The occurrence of cancer is the result of a combination of factors. If you really want to prevent cancer, it is very important to do these things well.

To prevent cancer, you first need to make lifestyle changes, including healthy eating, active Exercise, psychological adjustment and regular physical examination, etc., but also need to pay attention to reduce the chance of exposure to carcinogens as much as possible. Maintaining the correct way to prevent cancer can prevent cancer to a large extent, and you don’t have to worry too much every day.

Although carcinogens can be seen everywhere, don’t talk about discoloration. For ordinary people, it is necessary to minimize exposure to these substances. At the same time, pay attention to some of the above-mentioned anti-cancer measures, I believe that cancer will be far away from you. #Number Weekly# #Everyone can popularize science, and there are new knowledge everywhere#

References:

[1] “Scientific Views on Carcinogenic Factors: International Institutional carcinogens are classified into 5 categories and 4 levels”. China Biotechnology Network. 2014-04-12

[2] “Cervical Care Starts with HPV Detection”. Chinese Science Journal. 2016-04-26

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[3] “Helicobacter pylori is classified as “clearly carcinogenic”! More than half of the Chinese were recruited! One person gets sick and infects the whole family”. Fujian Health News. 2022-01-06

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