The new mRNA crown vaccine can embed the virus gene into the human chromosome through reverse transcription, so that the vaccinated person will become a genetically modified person.
90% of novel coronavirus can be killed by tea within a minute;
The “winter magic” self-heating underwear applies a variety of technologies, can be self-heating, maintain a constant temperature of 37℃……
Is this all true?
Not too!
The January list of “scientific” myths, published on January 31st, dispels such myths.
The monthly “science” rumors list is jointly released by Beijing Association for Science and Technology, Beijing Cyberspace Administration, Capital Internet Society, Beijing Association of Science Journalists and Editors, and the website dispelling rumors platform in Beijing.
- Vaccination with the new crown vaccine changes human genes
Rumor:
The mRNA new crown vaccine would insert the virus’s genes into the human chromosome through reverse transcription, thus turning the vaccinated person into a genetically modified person.
The truth:
Currently, there are two main types of vaccines approved for the market: one is an mRNA vaccine, and the other is an inactivated vaccine.
No matter what kind of vaccine, it will not change the human gene, let alone turn the recipient into a “genetically modified person”.
Inactivated vaccine makes novel coronavirus lose its infectivity and replication ability through chemical methods, and at the same time retains the response activity that can cause human immunity. It belongs to the traditional and classic way of vaccine preparation, and does not belong to genetic engineering vaccine, so “changing human genes” is out of the question.
The novel coronavirus vaccine is mainly produced by genome sequencing and analysis, and a part of the gene encoding the spiking protein of novel coronavirus is used as the antigen to produce vaccine.
The mRNA new crown vaccine contains just one sequence of the virus’s nucleic acid that encodes a protein. Human cells then synthesize the protein using their own components and the template of the virus’s mRNA.
Its viral nucleic acid material is neither integrated into the human cell genome nor replicates and expands in the cell.
Cell not only was not hijacked by virus, instead the protein that uses them to synthesize together trained a batch of “mercenary army”, again with “mercenary army” guard against the enemy that invade — novel coronavirus.
Most importantly, the mRNA vaccine does not need to enter the nucleus to express the antigenic protein. The immune cells in the body will actively enrich (collect) the antigenic protein and, through a series of molecular mechanisms, produce the neutralizing antibody.
Novel coronavirus is an RNA virus, but not a “retroviral RNA virus,” so the gene for a novel coronavirus does not integrate into a human chromosome.
Chromosomes, which carry the human genome, are found in the nucleus, which is surrounded by a nuclear membrane.
In the case of an mRNA vaccine, the vaccine’s nanoparticle carrier simply carries a piece of the virus’s gene into the cytoplasm, not into the nucleus at all.
If you can’t even get into the nucleus, how can you get integrated into the human genome?
So the idea that you would become a genetically modified person if you were vaccinated with the mRNA crown vaccine is completely alarmist.
- A wrinkle in the earlobe can predict coronary heart disease in advance
Rumor:
Atherosclerotic disease can be predicted by earlobe folds.
The truth:
The earlobe is mainly composed of connective tissue without cartilage or ligaments, and its blood supply comes from the posterior auricular artery and the anterior auricular branch of the superficial temporal artery. Ichaemia may lead to the contraction of the earlobe skin and the formation of folds, which is a normal physiological phenomenon and has no inevitable connection with coronary heart disease.
Coronary heart disease is the heart disease caused by coronary artery atherosclerotic lesions and vascular stenosis or obstruction, resulting in myocardial ischemia, hypoxia or necrosis.
In short, the blood vessels supplying blood to the heart are narrowed, and the heart is not supplying enough blood, so the body shows a series of symptoms such as chest tightness and chest pain.
According to the Guidelines for Primary Prevention of Cardiovascular Diseases in China, in addition to uncontrollable factors such as age, gender and inheritance, hypertension, dyslipidemia, diabetes, obesity and overweight, smoking and poor dietary habits are all independent risk factors for CHD.
Studies have shown that the mechanism of earlobe folds may be related to special sleeping position, genetic background, premature aging, oxidative stress, collagen degradation, etc., but the specific mechanism remains unclear.
Earlobe folds have never been included in the diagnosis and treatment guidelines of coronary heart disease, expert consensus, and medical textbooks at home and abroad, which shows that the guiding significance for doctors is not great.
Clinically, the diagnosis of coronary heart disease by a cardiologist should be based on the patient’s history, clinical symptoms, physical examination, electrocardiogram, echocardiography, myocardial markers, coronary CT, coronary angiography and other related examinations, which are obviously more reliable than the observation of earlobe folds.
- “Self-Heating Underwear” can heat itself
Rumor:
The “magic device for winter” self-heating underwear can heat up by itself and keep a constant temperature of 37℃. A variety of black technology is applied.
The truth:
Most sellers of hot underwear claim that their underwear has a layer of “high-tech” material, can heat themselves, the thermal effect is several times that of traditional cotton thermal underwear, is “black technology” and so on.
From the point of view of the law of conservation of energy, spontaneous heat is not scientific, because energy needs a source, heat can not be created out of thin air.
At present, there is no material in the world that can really heat itself, that is to say, there is no real sense of self-heating clothing.
So-called spontaneous heat underwear is actually the fiber “hygroscopic fever” principle of the concept.
It’s well known that the stratum corneum on the surface of your skin expels water, and when your skin radiates water vapour outward, this water vapour dissipates heat as it liquefies, which is an important reason why we feel cold in the winter.
Generally speaking, it’s best to wear heavier clothes to protect you from the cold.
Static air has the lowest heat conductivity. The more air the fiber layer can hold under the premise of no air flow, the better the warmth retention of clothing will be.
However, bulky and heavy clothes, while useful for keeping warm, are not only ugly to look at, they are also inconvenient to move around.
So garment makers are starting to work on fabrics that are thin and light enough to fit easily on and off.
On the other hand, if the thermal performance is good enough, fibrous material is a good choice.
When the fiber absorbs water, the hydrophilic group in the fiber molecules combines with the water molecules, and the kinetic energy of the water molecules (water vapor) is reduced and converted into heat energy to be released, which is hygroscopic heating.
The higher the hygroscopicity of the fiber, the more heat dissipation during hygroscopicity.
Therefore, the so-called spontaneous heat underwear, in fact, is the use of special fiber materials, with “moisture absorption and thermal” effect of underwear.
For example, a brand of self-heating underwear, the main material is polyester fiber and viscose fiber, in which acrylic fiber is responsible for keeping warm, viscose fiber is mainly responsible for air permeability and sweat, incidentally to help keep warm, polyester is responsible for anti-wrinkle, spandex is responsible for making clothes more close to the body.
With the continuous increase of “heating capacity”, it can be seen that the proportion of the sum of viscose fiber and acrylic fiber increases generally.
Self-heating underwear is actually warmer than regular long Johns when the fibers and ingredients are “recombined”.
However, spontaneous hot underwear affected by the environment is greater, in a very dry environment there is no heat absorption capacity, such as in the winter of dry and cold northwest, north China, spontaneous hot underwear effect certainly not as good as the Yangtze River basin.
In addition, maintaining a constant temperature is not an easy thing to do, the fiber hygroscopic reach saturation, water absorption is less, this time the heat is less.
According to the principle of conservation of energy, the moisture absorbed by fiber materials also needs to be released, which is also a process of “heat absorption and moisture dispersion”, that is to say, spontaneous hot underwear has actually been in the process of hygroscopic – heat release – moisture release – heat absorption cycle, which is not good for some people with sensitive skin.
- Eating lard is good for the heart and blood vessels and has a health effect
Rumor:
Eating lard is good for the heart and blood vessels and has health benefits. Lard is a treasure.
The truth:
Lard does have some nutritional value. It provides essential fatty acids, promotes the absorption of fat-soluble vitamins, and provides calories.
The fat intake from the diet is an important source of body heat supply.
But lard is not a health food.
The main component of lard is fat, and a large part of it is saturated fat, which has no special effect on human health and can not cure diseases.
In addition, lard energy is too high, eat more is not conducive to health.
It is best not to consume more than 25 percent of the body’s total daily energy from fat.
For an adult who needs 2000 kcal a day, the amount of saturated fat intake should be limited to around 22g a day.
If all of it is converted into lard, it is about 56 grams.
If the fat supply ratio is more than 30%, it is easy to suffer from a variety of chronic diseases, the most common is cardiovascular disease.
Numerous scientific studies have found that high intake of fat (especially saturated fat) and high energy intake increases the risk of cardiovascular disease.
So to claim that eating lard is good for your cardiovascular health is putting the cart before the horse.
- Tea can kill novel coronavirus
Rumor:
Ninety percent of novel coronaviruses can be killed by tea in less than a minute, and 99.9 percent can be killed by tea in less than 10 minutes.
The video of Qiao VIP, chief physician of the Department of Thoracic Surgery of Guangdong Provincial People’s Hospital, verified this conclusion.
The truth:
The research refers to the study of “the inactivation effect of different teas on novel coronavirus” by a team led by Toichi Yano, a professor of microbiological infectious diseases at Nara Prefectural Medical University in Japan.
The article concluded that the study did not demonstrate that tea consumption could prevent novel coronavirus infection.
In addition, the study was conducted in vitro, in other words in vitro.
Studies that kill the virus in vitro do not directly deduce the results of drinking it into the body.
To date, there is no complete evidence-based evidence for the prevention or treatment of novel coronavirus infection by drinking tea alone, either at the cell level in vitro, in vivo, in vivo or in clinical trials, or in dose-related studies. Therefore, we still need to take strict personal protective measures.
On January 7, 2021, the official microblog of Qiao VIP, chief physician of thoracic surgery department of Guangdong Provincial People’s Hospital, published an article titled “About the Internet” Tea can kill novel coronavirus “, which invites netizens to wipe their eyes!
To dispel rumors.
Qiao VIP director pointed out that the network video was taken out of context, the head and tail, the rumor into a rumor, please keep your eyes bright, do not believe the rumor.