What common sense questions about health are misunderstood and distorted by the public?

1. has certain scientific basis, but in terms of daily dose, it is basically impossible to achieve:

Example 1:

Seafood, especially shrimp, is high in arsenic. Especially today, seawater and seafood are polluted to varying degrees, and the arsenic content in seawater and seafood is relatively higher than before. Because the arsenic contained in seafood is pentavalent arsenic, it is nontoxic after people eat it. But if seafood and vitamin C are eaten together, because the latter has a reducing effect, it will convert pentavalent arsenic into trivalent arsenic (arsenic trioxide), which is arsenic and toxic.

Example 2:

Experts have confirmed that eating tomatoes and crabs at the same time will produce highly toxic effects:/JK/2012/09-06/4164974.shtml.

2. The content is controversial, the media uses misleading tone, and the title is easy to cause panic:

Example 1:

Online exposure of supermarket shopping receipts, carcinogenic experts said don't touch the wound after washing your hands frequently:/Xinwen/shehuixinwen/201208/t20120802 _ 7303993.htm.

Discussion on this topic can refer to the following questions:

Is it true that the heat-sensitive paper used in supermarket receipts contains carcinogenic bisphenol A? :/question/20422853

3. It means vague or general regardless of the situation:

Example 1:

Why can't pregnant women drink coke? It is said on the Internet that carbonated drinks contain excessive pigments, preservatives and sugar. It is easy to cause high blood sugar in pregnant women and easy to cause miscarriage. All carbonated drinks except cola contain sodium benzoate, and benzene is a toxic substance. Not good for mother and fetus.

Although cola has no sodium benzoate, it has phosphoric acid and caffeine. Phosphoric acid is easy to take calcium from human body, which is unfavorable to fetal development. If pregnant women consume more than 150 mg of caffeine every day, it will not only endanger their own health, but also increase the incidence of congenital headache, heart disease, underweight and other diseases, posing a great threat.

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These things that need to vary from person to person or from physique (mainly reflected in food intake or some nutrients intake) can't be said to be unscientific, but at least they are easily misunderstood.

The conclusion is correct, but it is mistaken for "pseudoscience" because it is loosely used for everyone to understand.

This situation is rare, but it is easy to be caught by the masses.

Example 1:

Professor of Chinese Academy of Sciences said that putting salt and soy sauce too early in cooking can make chlorine in sodium chloride volatilize, leaving only sodium. Is there any basis for this statement? :/question/2042483 1

This expert has been scolded many times in Weibo and major websites, which is really a bit wrong. If you have seen the video, you will know that what he really wants to express is the combination of chloride ions with other ions, rather than the volatilization of chlorine gas. Besides, his conclusion is reasonable, but the expression is slightly inappropriate.

Personally, I prefer to explain it in a more direct, simple and rude way. For example, I would say, "Olive oil will have a series of reactions you don't know at high temperature. In short, olive oil is not much different from other oils when cooking at high temperature. " Just draw a conclusion.

5. There is no scientific basis, and the rumor is wrong:

What I am most afraid of is this kind of rumor under the guise of kindness. Common formats are as follows:

That's terrible! Hurry and forward it to your relatives and friends! A girl in Taiwan Province Province ate AA and BB at the same time last week and suddenly bled to death. Experts explain that AA and BB are highly toxic in the body!

An American boy is talking on the phone while charging. As a result, the battery suddenly exploded and the head was seriously injured! Experts have confirmed that XX brand mobile phones have security risks! Attention, people who use XX mobile phones!

This kind of fake news, generally as long as you start with Google or Baidu, you can distinguish between true and false. Unfortunately, most people just click forward and ask them why they don't want to confirm. They will say: I don't understand anyway! I just want others to see it! Maybe it's true!

What is more exaggerated is that all kinds of phishing versions are also madly forwarded by many brainless people, such as:

Experts recently confirmed that HCl is ubiquitous in China people's stomachs, which is a corrosive strong acid! What happened to food safety in China?

Experts found that China's drinking water contains a lot of hydrogen monoxide, and excessive intake will lead to poisoning!

Authoritative nutritionists suggest that it is best not to eat breakfast on an empty stomach!

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From Zhihu:

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