WHO Carcinogenic List： Apart from Chinese salted fish, there are 8 things that should be avoided as much as possible.

"Why is it that I have cancer? Why did God do this to me? "

"Looking back on my life in the past 30 years, what have I done to harm the world and punish me with cancer?"

"I really don’t want to die. I never thought I would get cancer one day."

…..

Xiao Ai has heard the voices of many cancer friends after suffering from cancer. In fact, cancer is not far away from everyone. According to the statistics of the World Health Organization, there will be 4.57 million new cases of cancer in China in 2020, and the death toll will exceed 3 million. The real killer who caused cancer may be hidden around everyone.

In China, 4.57 million people suffer from cancer a year, and carcinogens should be kept away.

After a lot of scientific research, the International Center for Research on Cancer under the World Health Organization has found many carcinogens and potential carcinogens. According to the strength of carcinogenic evidence, they are divided into four grades, a total of five categories:

Grade 1 carcinogen:

Refers to substances that have been proved to be carcinogenic by sufficient medical evidence and animal experiments. At present, 120 substances have been listed as first-class carcinogens;

Class 2 A carcinogen:

It means that it is likely to cause cancer to humans but lacks sufficient experimental evidence. There is clear evidence in animal experiments that it will cause cancer on the surface. At present, 81 substances are known to belong to Class 2 A carcinogens;

Class 2 B carcinogen:

Refers to substances with insufficient evidence of carcinogenicity to humans and animals. At present, 299 substances are known to belong to Class 2 B carcinogens;

Grade 3 carcinogen:

Refers to substances that are uncertain whether they are carcinogenic to human beings. At present, 502 substances are known to belong to this category.

Class 4 carcinogens:

Refers to substances that are probably not carcinogenic to human beings. At present, only caprolactam belongs to Class 1 carcinogen.

Obviously, the primary carcinogen is the most definite carcinogen at present. Let’s learn about some common primary carcinogens in our lives with Xiao Ai. It is very likely that you are exposed to these substances every day.

Reveal the most common primary carcinogens in daily life

1. Primary carcinogens that are easy to be eaten.

① Chinese salted fish

Chinese salted fish needs to be salted with high concentration of salt in the production process, which will produce a lot of nitrite. After nitrite enters the body, it will be converted into nitrosamines in the acidic environment of gastrointestinal tract, and nitrosamines have a strong carcinogenic effect, which is easy to induce cancers such as esophageal cancer and gastric cancer.

② Acetaldehyde-wine

After alcohol enters the human body, it will go through a series of complex metabolic processes, and it is easy to be converted into acetaldehyde during the process, and acetaldehyde stays in the body with strong carcinogenicity, which can not only combine with DNA in the body, but also induce gene mutation. 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.

③ Aflatoxin-moldy food

Aflatoxin is one of the strongest carcinogens known at present, which can cause cancer in a dose of 1mg, and an adult can die if ingested 20mg at a time. Aflatoxin likes to hide in moldy foods, especially those with high starch content, including peanuts, corn, nuts, etc. Once these foods are moldy and bitter, they should be discarded in time to avoid ingesting aflatoxin by mistake.

(4) benzopyrene-barbecue food

Benzopyrene is one of the most toxic polycyclic aromatic hydrocarbons, which can enter the body through inhalation, ingestion and skin absorption. Most of benzopyrene enters the body and needs to be converted into a variety of metabolites under the activation of oxidase in liver and lung cells, which then damages genes, and it is easy to induce cancer if it is not repaired in time. Benzopyrene is very common in cigarette smoke, automobile exhaust, smoking and high-temperature cooking food.

2. Primary carcinogens that are easily infected.

① Helicobacter pylori

Helicobacter pylori is one of the main causes of gastric cancer, and 63.4% of gastric cancer is caused by infection with Helicobacter pylori. In the natural environment, people are the only source of infection of Helicobacter pylori, which can be mainly transmitted through feces-mouth, mouth-mouth, stomach-mouth.

②HPV virus

In 2014, HPV types 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58 and 59 were listed as primary carcinogens. According to the data published by China Science Journal, 99% of cervical cancer cases are caused by HPV infection, and the main transmission route of HPV is sexual behavior. In addition to sexual behavior, indirect contact such as contaminated bath towels and bathtubs may also lead to HPV infection.

③ Hepatitis B virus

China has always been known as "a country with liver diseases", and about 80% of liver cancer patients in China are related to hepatitis B. After being infected with hepatitis B, it may gradually evolve into a trilogy of liver cancer without timely intervention: hepatitis-cirrhosis-liver cancer. The transmission routes of hepatitis B mainly include blood, mother-to-child and sexual transmission, such as unprotected sex with hepatitis B patients, inadequate disinfection of traumatic behaviors such as daily blood transfusion/eyebrow tattoo, etc., which may cause infection.

3. Primary carcinogens that are easily inhaled.

① Tobacco

The smoke from tobacco burning contains more than 7,000 compounds, and hundreds of harmful substances, whether first-hand smoke, second-hand smoke or third-hand smoke, will seriously threaten health. Long-term inhalation of tobacco smoke will accelerate gene damage and prevent gene repair, thus inducing cancer.

② Formaldehyde

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

Seeing this, many people feel scared. Life is full of carcinogens. Can’t they escape? Can we just wait for cancer to come to us?

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 carcinogens are bound to get cancer if they are not exposed. The occurrence of cancer is the result of a combination of many factors. If you really want to prevent cancer, it is very important to do these things well.

Cancer prevention first requires lifestyle changes, including healthy diet, active exercise, psychological adjustment and regular physical examination. At the same time, it is also necessary to pay attention to reducing the chance of exposure to carcinogens as much as possible. Keeping the correct way to prevent cancer can prevent cancer to a great extent, and you don’t have to worry too much about it every day.

Although carcinogens can be seen everywhere, don’t talk about it. For ordinary people, try to avoid contact with these substances. At the same time, we should also pay attention to some of the above anti-cancer measures, and believe that cancer will be far away from you.

This article first appeared in today’s headlines.

References:

[1] Scientific View of Carcinogenic Factors: Carcinogenic Substances in International Institutions are divided into 5 categories and 4 grades. China Biotechnology Network.2014-04-12.

[2] "Care for the cervix begins with HPV detection". China Science Journal .2016-04-26

[3] Helicobacter pylori is listed as "definitely carcinogenic"! More than half of the Chinese people are recruited! One person’s illness infects the whole family. Fujian Health News .2022-01-06

Read the original text