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Cancer, in addition to being closely related to its physical fitness, is also directly affected by the external environment.
Do you know what is the most dangerous cause of cancer in the world? Where are the carcinogens closest to you hiding?
The International Agency for Research on Cancer, a subsidiary of the World Health Organization, classifies carcinogenic factors into five categories: 1, 2A, 2B, 3, and 4 according to the carcinogenic risk to humans.
Class 1 carcinogenic factors, also known as “confirmed carcinogens”, have sufficient evidence to prove that they are carcinogenic to humans.
As of October 2017, there are 124 members on the list of Class 1 carcinogens! The main ones that are closest to you are the following:
Aflatoxin, formaldehyde, nicotine, nitrosamines (precursor is nitrite, ie nitrite is converted to nitrosamine under certain conditions), benzopyrene, betel nut, alcohol.
Next, let’s take a look at where these common first-class carcinogens are hidden!
Aflatoxin: the strongest biological carcinogen
1 mg of aflatoxin is the carcinogenic dose! It is the strongest biological carcinogen we know.
Common sources of aflatoxin:
1 moldy peanut corn
Aflatoxin is found in moldy foods, especially foods with high starch content, peanuts, corn, etc. The rice, millet, and beans that we often eat, especially in a hot and humid environment, will become trapped in the claws once they are mildewed.
2 spoiled rice
Don’t think that you can relax your vigilance when you are cooked. Deteriorated rice is the most prone to aflatoxin!
3 bitter nuts
The bitterness of nuts such as melon seeds is derived from the aflatoxin produced during the mildew process, and frequent intake increases the risk of liver cancer.
4 long chopsticks
The chopsticks themselves do not grow aspergillus, but the uncleaned chopsticks tend to hide the starch. In a humid, warm environment, it is easy to mold and produce aflatoxin.
5 inferior sesame sauce
In order to reduce costs, some merchants use sesame seeds, peanuts and even spoiled sesame seeds and peanuts as raw materials, and the spoiled peanuts contain aflatoxins.
6 soil pressed peanut oil
The small workshop can filter the impurities up and down before the oil is squeezed, but the aflatoxin can not be observed by the naked eye. The seeds without obvious mildew will also be contained, and the simple oil press process cannot be processed.
Second, benzopyrene: can induce a variety of cancer!
Animal experiments have shown that long-term inhalation or consumption of foods containing higher benzopyrene tend to induce lung cancer, liver cancer, and gastrointestinal cancer.
Common sources of benzopyrene:
1 high temperature fried food
High-temperature vegetable oils, fried foods, and fried foods that are used repeatedly can produce benzopyrene. The content of eschar food is 10-20 times higher than that of ordinary food.
2 cooking fumes
It has been determined that the soot produced when the cooking oil is heated to 270 degrees Celsius contains a compound such as benzopyrene. The most wrong way is to put the oil in the pot before you put the vegetables! After frying a dish, don’t brush the pan and then fry! Both of these practices are prone to benzopyrene.
The fuel charcoal used for smoking has a small amount of benzopyrene, which may be invaded with food at high temperatures. On the other hand, incomplete combustion of sugar and fat contained in smoked fish or meat can also produce benzopyrene.
The carbon black in the ink contains several carcinogenic polycyclic aromatic hydrocarbons, especially the content of benzopyrene. Some food wrappers will directly contaminate food when they are not dry. Many people like to use newspapers to wrap strawberries, Chinese cabbage, etc., so that they are more exposed to benzopyrene.
5 car exhaust
Do not exercise or walk on the road in the morning because the car exhaust contains more benzopyrene.
Third, nitrite: toxic, indirect carcinogenic!
The nitrite enters the body and combines with the proteolytics in the stomach to form a carcinogenic nitrosamine.
Common sources of nitrite:
1 processed meat products
Nitrite-treated foods, such as processed meat products such as sausages, hams, and bacon, also contain nitrosamine-based carcinogens that cannot be eaten regularly.
2 overnight dishes
Leftovers left over for a long time will produce toxic substances, some overnight vegetables, especially overnight green leafy vegetables, not only have low nutritional value, but also produce pathogenic nitrite.
3 pickled food
Kimchi, salted fish, and bacon, these high-salt marinated foods contain a lot of nitrates, which are highly carcinogenic when they become nitrite in the body.
4 hot pot soup
Experiments have determined that the content of amino acids and amines in hot pot soup is relatively high, and it is very likely to synthesize nitrosamine carcinogens with nitrite under heating conditions.
Fourth, formaldehyde: carcinogenic teratogenic!
Studies at Yokohama National University in Japan have shown that the release of formaldehyde is a slow and long-term process. This release period lasts for 10 to 15 years and can cause teratogenic cancer damage to the human body.
Common sources of formaldehyde:
1 The joint glue in the decoration
Experiments have shown that no matter how good a good material is, as long as the urea-formaldehyde resin is used, formaldehyde may remain for a long time. Urea-formaldehyde resin adhesive is the joint glue used in the decoration of houses, and is used for corners and joints of doors, windows, furniture, floors, etc.
2 squid and other aquatic products
Water-based foods and aquatic products such as squid, cow venetian, and duck intestines are the most likely to be added to illegal traders. Because water-based products such as squid treated with formaldehyde can double the weight and make more profit.
3 inferior clothing
You should first smell the smell when you buy clothing. If there is a pungent odor on the clothes, most of the clothes have excessive formaldehyde content.
4 car mats
In August 2015, a test conducted by the staff of the market supervision department of Ningbo City on the car mat showed that among the 22 sets of car mat samples purchased randomly, 17 groups of formaldehyde concentrations exceeded the limit. The most serious of them is 127.3 times more.
5 inferior melamine tableware
Inferior melamine tableware directly uses urea-formaldehyde resin instead of melamine resin to produce tableware, which is formed by chemical reaction with urea and formaldehyde. This substance is highly toxic, easily soluble in water and releases formaldehyde gas.
Five, other common types of carcinogens!
Other common types of carcinogens
90% of lung cancer is related to smoking. It can be said that smoking is the culprit of lung cancer. Assume that the average person has a lung cancer rate of 1, and a large number of people who smoke are 17 times more likely to have cancer than those who are not smokers.
The British science monthly “Addiction” states that alcohol can cause cancer and is associated with at least seven cancers: oropharyngeal cancer, laryngeal cancer, esophageal cancer, liver cancer, colon cancer, rectal cancer and breast cancer.
3 Air pollution
At the end of 2013, the World Health Organization explicitly classified airborne particulate matter (including PM2.5) as a primary carcinogen.
4 areca nuts
About 60% of patients with oral cancer are related to eating betel nut. In areas such as Hunan, Hainan, and Taiwan where oral cancer is high, local people like to eat betel nuts.
Show your family about carcinogens,
Minimize the possibility of cancer from yourself!
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