In August, the "Science" rumors list was released. Long-term drinking of strong tea can cause severe anemia. "Anti-boring artifact" can relieve the stuffiness of masks. Don't believe it. In addition-
Lambda is promoted to the new crown "drug king". Is the vaccine abolished?
The delta mutant strain of the new crown virus is raging, and "transformation Dafa" is still being staged.
No, the mutant strain of the virus named "Lamda" is coming with greater "lethality", and it is quite likely to become the new "Poison King" posture.
What followed was another plot of the new crown vaccine being hacked.
In August, the "Science" rumors list was released, packaging and dispelling rumors, the health topic you are most concerned about recently. Virus Lambda has abandoned the vaccine again?
Is camel milk closer to breast milk?
"Anti-boring artifact" can really alleviate the sultry feeling of masks?
Listen to what the correct answer says.
The monthly "science" rumors list is guided by the Beijing Science and Technology Association, the Beijing Municipal Internet Information Office, and the Capital Internet Association. The Beijing Science and Technology Journalists and Editors Association and the Beijing regional website jointly publish the rumor rejection platform.
Rumor 1 Lambda invalidates the new crown vaccine
Truth: The new crown lambda mutant strain may become the "new poison king" beyond Delta, the vaccine is useless?
We really need to be wary of the constantly emerging mutant strains, but we don't need to bother with the fact that some people use mutant strains for "intimidation marketing."
From the perspective of serum neutralization experiments, some recent studies have indeed shown that lambda has a certain immune escape, but it is not outstanding among many mutant strains.
According to existing research, Lambda did not invalidate the vaccine.
On June 14, the lambda mutant strain was identified by the World Health Organization as a “mutation of concern”, that is, at the level of genetic mutations, it may lead to enhanced virus transmission and immune escape, and the mutant strain exhibits a public health level. Potential threats.
According to the spread of the lambda mutant in South America, especially when it became the main virus strain in Peru within a few months, scientists believe that the lambda mutant is a more powerful virus strain.
Rumor 2 "Increase the needle" can help children grow taller
Truth: Worried about the child's unsatisfactory height, can the problem be solved by going to the hospital for a "increasing shot"?
Don't think too simple.
"Zenggao needle" is growth hormone, which is mainly used to treat short stature in medicine and has a clear range of use.
Whether or not patients can fight growth hormone also has a set of strict requirements and physical examination indicators, such as age, bone age, hormone level, etc., which can not be used if they want to fight.
There are many adverse effects of growth hormone. After some children are injected with growth hormone, their thyroid function will temporarily decrease, and they will have symptoms such as fatigue, fatigue, and puffiness.
Some children will experience high blood sugar after injection of growth hormone, which requires regular monitoring to avoid the risk of diabetes.
Even, some children will cause endocrine disorders, slippage of the femoral head, and scoliosis after injection of growth hormone.
Therefore, through the abuse of growth hormone, the children's health may be damaged.
Rumor 3 "anti-boring artifact" can alleviate the stuffiness of masks
Truth: Wearing a mask in hot weather will make you feel very suffocated. The "anti-boring artifact" brackets on the market came into being. It supports flat masks and increases the distance between the mask and the nose and mouth, thereby reducing the sultry feeling.
But is this really good?
Masks are an important line of defense to prevent new coronavirus infections. Adding a bracket to the "anti-boring artifact" will affect the tightness of the masks and greatly reduce the protective effect.
When wearing a mask in a standardized manner, you need to cover the mask with your hands, and use your index fingers to shape your nose with a pair of index fingers to fit your cheeks.
The support frame is generally made of plastic and has a uniform shape, which is difficult to conform to the shape of everyone's face and is prone to displacement.
Excessive support in the center of the "anti-boring artifact" can easily lead to gaps on both sides of the mask, which will affect the air density of the mask and weaken its protection.
Moreover, a large breathing area will also make it difficult for the exhaled water vapor to evaporate, and the accumulation of hot and humid air will only make people feel more stuffy.
In addition, although the N95 and other masks used by medical staff in high-risk areas also have a supporting structure, they are supported under the condition of ensuring that there is no air leakage. The principle is different.
Rumor 4 Control of polio and measles has nothing to do with vaccines
The truth: “Vaccines have not eliminated smallpox, polio and measles at all. The vaccine itself is a scam.” In fact, vaccines have played a key role in eliminating smallpox and controlling the spread of polio and measles.
The process of controlling infectious diseases by means of mass vaccination and other means has never been achieved overnight.
Rumors that some infectious diseases have not disappeared after vaccination are often used to deliberately ignore many details and even contradict themselves.
For example, there is an article claiming that the smallpox vaccination was compulsory in Britain in 1853, but there was still an outbreak of smallpox in 1870, accusing the vaccine of ineffectiveness.
In fact, since the mandatory smallpox vaccination began in 1853, the fatal rate of the smallpox epidemic in the UK has dropped significantly. The 1870 epidemic originated from the smallpox outbreak in France, which does not mean that the vaccine is ineffective.
In addition, global cases of polio fell from 350,000 in 1988 to 33 in 2018.
It can be said that the effectiveness of the polio vaccine has been proven by sufficient data.
As for measles, from 2000 to 2011, the number of people who died of measles each year fell from 542,000 to 158,000, a 71% drop, which was also due to the progress of global measles vaccination.
Rumor 5 Camel milk is closer to breast milk
The truth: Camel milk, known as "Desert Platinum", is really the closest thing to breast milk as the ingredients spread on the Internet, and is more suitable for feeding newborns than milk?
In fact, the best food for newborns is breast milk.
Breast milk not only contains all the nutrition that the baby needs, but the ratio of various nutrients is within the reasonable range that the baby needs.
The content of protein, fat, and lactose in breast milk are usually 1%, 4%, and 7%, respectively, and the content of the three in milk is about 3%, 4%, and 5%.
Compared with breast milk, the protein content in milk is too high and the lactose content is too low, while the sugar content of camel milk is lower than that of cow's milk, and the protein is higher than that of cow's milk.
Even if the micronutrients are not considered, but only the composition of the main nutrients, camel milk is too far from breast milk.
If breastfeeding cannot be achieved for various reasons, infant formula is the only approved option.
Whether it is based on milk, goat milk or soy protein, the nutritional components in infant formula have been adjusted to "simulate breast milk" as much as possible to meet the nutritional needs of infants.
Rumor 6 Beijing Healthbao can only be used in Beijing
Truth: Beijing Healthbao can only be used in Beijing, and can't be opened once it arrives in other places?
In fact, the health treasure can also be used normally outside Beijing, and the situation of "cannot open" is generally a network problem. For example, there are more people using the network in commercial buildings, airports and other places, and it may be slow to load.
Relevant departments suggest that people open the health treasure in advance once a day. According to the current basic design, the health treasure will cache the user's health status on the mobile phone. Once the cache is scanned in the future, there is no need to search online.
At the same time, the health treasure system will also be upgraded, and the upgrade will generally be selected between 0 AM and 2 AM.
If some citizens happen to be taking a flight at this time, they may not be able to open the health treasure. In this case, just refresh them patiently.
In addition, the "Itinerary Verification" refers to all mobile phone numbers that are bound to WeChat, Alipay, Baidu, Beijing Tong and other channels under the names of citizens. Citizens are requested to unbind mobile phone numbers that are not commonly used and have been cancelled 14 days in advance to avoid using them. Unable to pass verification.
If the bound mobile phone number is not used in Beijing or will not be turned on for a long time, Beijing Healthbao will also pop up a pop-up window every time it is used, suggesting that citizens clean up and unbind it in time.
Rumor 7 eating bitter gourd can cause osteoporosis
The truth: It is believed that eating bitter gourd will lead to osteoporosis, nothing more than oxalic acid affects calcium metabolism, and excessive consumption will cause bone density to decrease.
Too much oxalic acid does affect the absorption of calcium to a certain extent, but it is only one of several factors leading to osteoporosis.
Bitter melon contains a certain amount of oxalic acid, which will indeed affect the absorption of some calcium. If the kidney function is not sound, too much oxalic acid may combine with calcium to form kidney stones.
But bitter gourd is not the only food that contains oxalic acid, or even the so-called "extremely high oxalic acid" food.
The root cause of osteoporosis is the loss of bone calcium, which leads to a significant decrease in bone density.
There are many factors that cause this phenomenon, mainly including: gender (high risk for women), old age, family inheritance, insufficient calcium intake, excessive dieting, and so on.
The effect of oxalic acid can only be attributed to the factor of calcium intake.
Rumor 8 Drinking strong tea for a long time can cause severe anemia
Truth: It is believed that drinking strong tea will cause iron deficiency anemia, based on the fact that tea contains a lot of tannins, which can hinder the body's absorption of iron.
Tannin does hinder the absorption of iron, but according to actual population surveys in various countries, drinking tea will not have a great impact on the absorption of iron in the human body, and it will not cause anemia.
For the average person, the effect of drinking tea on iron absorption is almost negligible.
People generally don't drink a lot of tea. The tannins that can be dissolved from the tea are even less, and the effect on iron absorption is actually very small.
In addition, our daily diet is varied and many foods contain iron. As long as you eat more iron-rich foods, you don't have to worry about iron deficiency.
In addition, the causes of anemia are complex. In addition to the common iron deficiency anemia, lack of other nutrients required for hematopoiesis can also lead to anemia, such as B vitamins, vitamin C, folic acid, vitamin B12, and so on.
Rumor 9 Milk powder for ice cream is a "low-end" product
The truth: Previously, a certain brand of ice cream ingredients used "low-grade" milk powder in China instead of "high-end" milk. The different materials used in the Chinese and foreign versions caused public concern.
Regardless of whether ice cream manufacturers use concentrated milk, milk powder or milk, the final point is to adjust the protein content in ice cream. In actual production, multiple ingredients are often used together, and there is no distinction between "high-end" and "low-end".
Whether at home or abroad, the most important functional components in ice cream are fat, protein, and sugar. The three components play different roles.
The main source of ice cream protein is milk protein, but whether milk or milk powder is used, the final protein in the product has the same effect.
In the ice cream industry, it is more common for Chinese companies to use milk powder, while the most commonly used in European and American countries is "concentrated milk", which is not actually "milk".
Simply put, concentrated milk is between milk and milk powder, and the water is not completely removed from the milk.
Ice cream manufacturers choose milk powder or concentrated milk mainly based on the market supply. This is not a regional discrimination, but it is based on local conditions.
For example, in Europe, North America, and Australia where milk sources are abundant, ice cream factories are more inclined to purchase concentrated milk.
In places where milk sources are relatively insufficient, such as China, milk powder is the most common choice.
In fact, whether it is milk powder or concentrated milk, it is a "standardized" product in the food industry. The difference between different batches is relatively small, and it is not affected by the season. The shelf life is longer than that of raw milk. It is convenient to store and transport, and is more conducive to product quality. Stablize.
Text/Reporter Li Jie