Hair dye causes cancer? Does microwave radiation cause cancer? Learn about the 8 most common cancer rumors

In recent years, the incidence of cancer has been increasing, and more and more people are paying attention to cancer. However, there are also many rumors about cancer. Today we will talk about the 8 most widely circulated cancer rumors on the Internet.

People who go to bed late and get up late are more likely to get cancer?

Going to bed late and getting up late is not necessarily more unhealthy than going to bed early and getting up early. The time when each person goes to bed and the length of sleep are largely related to lifestyle habits and also to their genes.

What is really harmful is the constant jet lag, which means that you go to bed late and get up late today, and then you can't hold on any longer and go to bed early tomorrow, thinking that you are making up for the sleep, but this is very bad.

Many studies have found that nurses who often work three shifts and stay up late, or flight attendants who often fly on international flights, have a higher risk of cancer than normal women.

Can sweet potatoes, broccoli, and garlic prevent cancer?

Lists of anti-cancer foods are often circulated online, with sweet potatoes, broccoli, and garlic always at the top. People often swear that eating anti-cancer foods will definitely prevent cancer.

Research shows that there is no single food in the world that can reduce the risk of cancer. The key is to eat a balanced diet and take in a variety of nutrients. This can balance the flora in our body and help the immune system.

So sweet potatoes, broccoli, and garlic are all good, and it’s fine to eat them in moderation, but don’t just focus on eating one anti-cancer food; a diversified diet is best.

Are people with an acidic body more susceptible to cancer?

We often say that acidic body constitution is the fighter in "pseudoscience", and this theory is so widely spread that it is astonishing.

This acidic body constitution does not exist in traditional Chinese medicine or Western medicine. In fact, it was invented by a foreign person who has never even attended university. Its purpose is to sell things, all kinds of acid-removing products. If you search for acid-removing products on the Internet, you will know what kind of people are promoting this theory.

Whether your body is comfortable or not has nothing to do with the pH of your body. You may be really sick, but it does not mean that your body is acidic.

If you have a physical examination, you will carefully look at your blood report. Everyone's blood pH value is between 7.35 and 7.45. This is a very strong regulatory function of our body. Even for patients with advanced cancer, their blood pH value is between 7.35 and 7.45.

Therefore, there is no such thing as an acidic body. It is nothing more than a gimmick created by some businesses.

Can microwave radiation cause cancer?

In fact, there is no evidence that the use of microwave ovens will directly increase the risk of cancer, because the radiation from microwave ovens is different from the radiation just mentioned.

There are two types of radiation, ionizing radiation and non-ionizing radiation. Ionizing radiation has a relatively high energy and can cause gene mutations, while non-ionizing radiation has a relatively low energy and will not directly increase the risk of cancer. Microwave ovens, WiFi, and mobile phones all bring non-ionizing radiation, so you can rest assured about these radiations.

Does overnight water or boiled water cause cancer?

Some people say: "Overnight water and boiled water contain a lot of nitrite, which can easily lead to cancer."

In fact, this is an unscientific statement, because scientific research has shown that the nitrite content in our tap water is 0.007 mg/L. After boiling once, the content is 0.021 mg/L, and after boiling 20 times, the content is 0.038 mg/L.

To cause cancer, the nitrite in water must reach at least 1 mg per liter. So the water would have to be boiled 200 times to reach this level.

However, it is not recommended to leave the water for too long, three days or more than a week, because at this time the water contains some microorganisms and bacteria, which are harmful to our body.

Does hair dye cause cancer?

A study by Harvard Medical School in the United States concluded that compared with women who have never used permanent hair dyes, women who have used permanent hair dyes do not increase the risk of common cancers such as kidney cancer, brain cancer, and certain breast cancers, and there is no significant association with cancer-related deaths.

The researchers also suggested that if you dye your hair, it is best to use permanent hair dye no more than twice a year and wash your hair frequently after dyeing; people with allergic diseases, pregnant women, breastfeeding women and children should try not to dye their hair; allergy tests should be conducted before dyeing your hair; be sure to use qualified hair dye and confirm that the hair dye used is produced by a regular manufacturer.

Are people with large breasts more likely to get breast cancer?

I don't know when it started, but this saying has been circulating among the people: "Girls with big breasts are more likely to suffer from breast cancer." This is the worst time that girls with big breasts have been criticized.

Breast cancer is cancer that occurs in the breast, not the entire breast. Whether you are likely to get breast cancer is determined by the size of your breast density, which is a key predictive factor for breast cancer. In other words, the greater the breast density, the higher the risk of breast cancer.

Breasts are mainly composed of mammary glands and fat. The size of the breasts depends mainly on the amount of fat in the mammary glands. However, breast fat tissue does not become cancerous. Therefore, having larger breasts does not make you more likely to get breast cancer.

Is cancer incurable when it reaches the late stage?

With the advancement of medicine, some cancers can still be cured even if they are discovered in the late stage, such as lymphoma and testicular cancer.

As targeted drug therapy continues to mature, many patients with advanced cancer have seen a glimmer of hope. Clinically, some patients have even lived for more than 3 to 5 years.

Therefore, the decision on whether or not to treat advanced cancer must be made under the guidance of a doctor, rather than giving up directly.