How does cancer come about? You will be enlightened after reading this!

When people are unfortunately diagnosed with cancer, their first reaction is, “Why me?” “Why did cancer have to find me?”

How did cancer come about? How did it come to you? You will be enlightened after reading this!

1. Cancer “sucked out”

1. Smoking - Cigarettes and second-hand smoke

Smokers have undoubtedly become "cancer candidates"!

The risk and probability of lung cancer increase as smokers smoke more, smoke for longer years, and start smoking at a younger age.

Smoking harms both yourself and others. The sooner you quit, the better!

2. Suction - kitchen fumes

The impact of kitchen fumes on people, at first glance, is that they have a strong irritation to the nose, eyes, and throat mucosa, which can cause respiratory diseases such as rhinitis, pharyngitis, and tracheitis. Long-term inhalation of fumes can also lead to lung cancer.

In an article titled "The Current Prevalence of Lung Cancer in my country and Its Prevention Measures," it was mentioned that a case-control study of lung cancer in women in Shanghai found that women who did not have indoor fume removal equipment when cooking had about 60% higher risk of lung cancer than women who had no or little indoor fume.

3. Suction - decoration pollution

There are more than 500 kinds of volatile organic compounds in indoor air, including more than 20 kinds of carcinogens. The most harmful ones are mainly formaldehyde, benzene, ammonia and esters.

Formaldehyde, in particular, is known as the "number one killer" of indoor environmental pollution. Children, as a sensitive group, may suffer from mild asthma at the very least, or nausea, vomiting, edema and other symptoms at the worst.

4. Suction – Environmental pollution

Environmental pollution is now receiving more and more attention. Fine particulate matter in the air, industrial waste gas, automobile exhaust and their derived compounds lead to smog weather.

In 2014, a study published in the authoritative journal The Lancet pointed out that haze can cause PM2.5 to deposit in the lungs, causing inflammation and leading to malignant diseases.

2. Cancer caused by eating

1. Eating too much salt

A high-salt diet is closely related to the occurrence of gastric cancer. The World Health Organization stipulates that the daily salt intake per person is 6 grams. If this amount is exceeded, the high osmotic fluid in the salt will damage the gastric mucosa, which can easily induce gastric cancer in the long run.

2. Eating too much meat

Eating too much meat is a high-risk factor for colorectal cancer. Excessive intake of nutrients, especially foods rich in serine and methionine, is more likely to induce cancer.

Especially nowadays, people's dietary structure is becoming increasingly high in fat and protein, which is more likely to induce cancer.

3. Eating food that is too hot

Chinese food is very distinctive. Food like hot pot is relatively hot and spicy. If you maintain this eating habit for a long time, it will easily damage the esophageal mucosa, which will need repeated repairs. This long-term cycle can easily lead to cancer.

4. Love to eat betel nuts

As early as 2003, the International Agency for Research on Cancer listed betel nut on the "blacklist" and classified it as a Class I carcinogen along with arsenic.

As for the causes of cancer: first, the chemical substances in betel nut form nitroso after chewing, which is a clear carcinogenic compound; secondly, betel nut is hard and can easily cause mechanical trauma to the oral mucosa when chewing.

5. Drinking

Alcohol is a Group 1 carcinogen defined by the World Health Organization's International Agency for Research on Cancer (IARC) and is the leading cause of cancer worldwide, and the number of cancers will further rise as alcohol consumption increases.

A modeling study by the World Health Organization's International Agency for Research on Cancer (IARC) published in the journal The Lancet Oncology showed that 7,000 new cancer cases in Canada in 2020 were associated with heavier drinking patterns, including 24% of breast cancer cases, 20% of colon cancer cases, 15% of rectal cancer cases, and 13% of oral cancer and liver cancer cases.

3. Cancer Saved

1. Don’t want to throw away moldy food

Aflatoxin is a highly toxic substance. As early as 1993, it was classified as a Class 1 carcinogen by the World Health Organization. Its toxicity is 68 times that of arsenic, 10 times that of potassium cyanide, and 70 times that of dimethylnitrosamine. It is extremely destructive to liver tissue. Frequent intake may increase the risk of liver cancer.

To prevent aflatoxin, avoid eating moldy food. Once you eat bitter or rancid nuts, be sure to spit them out and rinse your mouth immediately. Especially peanuts, sweet potatoes, sugar cane, etc. Peanut oil should not be stored for a long time. Once moldy, it should be thrown away immediately.

2. Don’t want to throw away leftover food

Vegetables usually contain nitrates. Under the action of bacteria, nitrates will be converted into nitrites which are harmful to the human body. The longer the storage time, the higher the nitrite content.

It’s okay to eat it occasionally, but if we eat such leftovers for a long time, we will ingest a lot of nitrite, which will have some effects on the human body. The most important hazard is that it may cause cancer.

4. Cancer caused by laziness

1. Too lazy to exercise

As early as 2013, the World Health Organization announced that laziness to exercise has become the fourth risk factor for death worldwide. Lack of exercise can lead to a decrease in immune cells in the body, greatly increasing the risk of cancer. Regular and continuous physical activity can prevent cancer in certain parts of the body.

2. Too lazy to go to the toilet

The habit of holding urine not only damages the bladder, increases the risk of frequent urination and urinary incontinence, but also reduces the resistance of the bladder mucosa, is prone to urinary tract infection, and even harms the kidneys, stimulates the prostate, and induces inflammation. Studies have shown that people who have the habit of holding urine are more likely to develop bladder cancer.

3. Too lazy to have a physical examination

Many cancer patients do not go to the hospital until late-stage symptoms appear. By then it is often too late to detect the cancer. The best treatment period has been missed and the doctors are helpless.

5. Cancer caused by “familiarization”

1. Staying up late for a long time

Staying up late for a long time is a predisposing factor for the high incidence of tumors, because staying up late can lead to disorders in endocrine hormone levels, abnormal cell metabolism, affect the normal division of human cells, cause cell mutations, and increase the risk of cancer.

2. Long-term overwork

Nowadays, the pace of social life is fast, and more and more people are working overtime, staying up late, and running around to work hard. Some people don’t even rest for several days.

However, the human body is like a spring, and excessive fatigue will directly lead to a rapid decline in the body's disease resistance.

To prevent cancer, don't overwork.

3. Irregular diet

Some bad eating habits greatly increase the risk of stomach cancer.

For example: in order to save time, people eat in a hurry; they have an irregular life and often eat "one meal hungry and one meal full", and often even skip breakfast, and sometimes overeat; smoked meat, fried, baked, burnt food and high-temperature cooking oil that has been used many times contain a large amount of carcinogens.

6. Cancer caused by infection

"Infection" refers to bacterial and viral infection. Studies have found that certain viruses and bacteria may be closely related to the occurrence of certain cancers.

Hepatitis B virus (HBV) and hepatitis C virus (HCV) infection increases the risk of liver cancer.

Human papillomavirus (HPV) infection is associated with the development of cervical cancer, anal cancer, vulvovaginal cancer, and oropharyngeal cancer.

In addition to viruses, certain bacteria are also related to the occurrence of cancer. The most clear and representative of these is the relationship between Helicobacter pylori (Hp) and gastric cancer and gastric lymphoma.

7. Other factors related to cancer

In addition, other factors that affect the incidence of cancer include: genetics, emotions, age, and occupation.

1. Genetic factors

A large number of studies have shown that genetic factors play a very important role in the occurrence and development of tumors. Tumors are a multi-gene genetic susceptibility disease that often occurs in families.

2. Emotional factors

Negative emotions play an important role in the occurrence and development of tumors. Studies have shown that gastric cancer, liver cancer and even intracranial malignant tumors are related to irritability, pettiness and excessive suppression of one's emotions.

3. Age Factor

There is a clear relationship between age and the occurrence of cancer. Generally speaking, the incidence of cancer increases with age. It can even be said that age is the most important risk factor for cancer.

Children are more likely to suffer from Wilms' tumor, neuroblastoma, retinoblastoma, and tumors of the lymphatic hematopoietic tissue (such as acute myeloid leukemia, acute lymphoblastic leukemia, lymphoma, etc.).

Adults are more likely to suffer from epithelial cancers, such as lung cancer, colorectal cancer, and breast cancer.

4. Occupational factors

Occupational exposure also affects the occurrence of cancer. Different occupations have different working environments.

People who work with dyes have a higher chance of being exposed to aniline, which may cause bladder cancer.

Coal mining, petroleum, chemical, and steel industry workers are exposed to and inhale coal dust, mixed dust, and other harmful substances for many years, and have a relatively high risk of lung cancer.

The incidence of lung cancer and malignant mesothelioma among asbestos miners is also relatively high; as early as 1986, my country listed lung cancer and malignant mesothelioma caused by occupational exposure to asbestos as occupational tumors.