Some people have this experience, go to the highlands to play and come back, and find that they have become taller. Is it really so amazing that the altitude of the plateau can allow adults to break through the blockade of genetics and growth age and realize their desire to leap forward? The narrative given on the Internet is that this is because the gravitational pull on the plateau is less, giving adults who have stopped growing a chance to continue to grow taller. However, it may be disappointing to tell the truth, and if you come out to play with the "long" height, sooner or later you will have to "return"....The latest issue of the "Science" Rumor List was released, which "wiped out" all kinds of health rumors that have been popular recently.
The monthly "science" rumor list is guided by the Beijing Municipal Association for Science and Technology, the Cyberspace Administration of the Beijing Municipal Party Committee, and the Capital Internet Association, and jointly released by the Beijing Science and Technology Journalists and Editors Association, and the Beijing ** joint rumor refutation platform.
Myth **Mycoplasma pneumonia can be changed by itself.
Truth **During mycoplasma pneumonia, if azithromycin is ineffective once or twice, should I switch to other antibiotics?
The medication for mycoplasma pneumonia should be guided by a doctor according to the stage of the disease and the patient's suitability, and it is not advisable to change the drug by yourself.
Although azithromycin may be resistant, due to the fact that there are few antibiotics currently available for mycoplasma infection in children, whether it is recommended from guidelines or clinical practice, macrolides such as azithromycin are still the preferred drugs for Mycoplasma pneumoniae pneumonia in children. Moreover, azithromycin is a growth phase inhibitor and will have a slower onset of action at first. At high concentrations, it has a slow sterilization effect on susceptible strains, and it takes a certain amount of time to take effect, so you can't rush to judge the effect after just using it once or twice.
In addition to mycoplasma, bacteria and viruses can also cause pneumonia. For pneumonia caused by different pathogens, the choice of medication is also different, for example, for mycoplasma pneumonia, penicillin and cephalosporin antibiotics are not effective, and macrolide antibiotics such as azithromycin are most commonly used. Patients suspected of being infected with pneumonia should go to the hospital for medical treatment in time, and after diagnosis, they should be targeted to avoid blind medication such as "self-change of antibiotics".
Myth There are more respiratory infections after the pandemic.
Truth Many people feel that after the new crown epidemic, there are more people with respiratory infections around them. In fact, winter is the season when all kinds of respiratory infections are piled up. For example, Mycoplasma pneumoniae and respiratory viruses, especially influenza viruses, will be more active in winter than in summer and spring, resulting in a significant increase in the number of infected people.
According to the monitoring data of the National Influenza Center, China has entered the influenza season this year, and the current influenza A is the mainstay, and there is also an epidemic of influenza B, and mononucleosis is also a common disease in children and adolescents, mainly caused by Epstein-Barr virus or cytomegalovirus, the disease is self-limiting, and the incidence rate has not increased compared with previous years.
During the pandemic, acute respiratory illnesses such as mycoplasma and viral infections decreased compared to other years due to the adoption of strict respiratory prevention and control measures. With the normalization of prevention and control, this year, such diseases have returned to their pre-epidemic manifestations, and the incidence level has returned to normal compared with before the epidemic.
Myth: Skim milk is healthier than whole milk.
Truth In today's dazzling variety of dairy products, skim milk is favored by many young people because it is "not easy to gain weight". There is also a saying on the Internet that whole milk contains a lot of saturated fat and cholesterol, so it is healthier to choose skim milk in daily life.
Although some international organizations and countries have dietary recommendations for skim milk, this recommendation is related to dietary structure and dairy intake. China's dietary guidelines recommend an average daily intake of 300 to 500 grams of milk and dairy products, while the actual intake is less than one-tenth of the recommended amount, and only one-fifteenth of the actual average intake in Europe and the United States. Therefore, for Chinese, the first issue is the need to increase the intake of milk and dairy products, rather than considering whether to skim or not.
Milk fat carries fat-soluble vitamins and can also give a mellow taste, rich milky flavor and a certain feeling of satiety. For the average person, skim milk is no healthier than whole milk, and consumers can choose the product according to their personal preferences. Only those who need to strictly control their fat intake or hypercholesterolemia need to choose skim milk as appropriate.
Myth Going to the plateau can make adults grow taller again.
Truth Some people have this experience, go to the highlands to play and come back, feel that they have become taller. The online narrative suggests that this is because there is less gravity on the plateau, giving adults who have stopped growing a chance to continue to grow taller. However, there is no scientific research that can confirm that the highlands can make people taller.
In microgravity, the gap between the discs becomes larger, making the spine longer. Therefore, after an astronaut has been in space for a period of time, his or her height will change by 3 to 5 centimeters.
Even so, the height that "grows" in space is only temporary, and after returning to the normal gravity environment of the Earth, the gap between the intervertebral discs will return to its original size, and the extra height will also "retract". So for adults, it is unreliable to want to grow taller by traveling to the highlands.
Myth: You can't drink water right after drinking syrup-based drugs.
Truth As the topic of "should I drink water after eating cough syrup" gradually fermented, there was a statement on the Internet that you should not drink water for half an hour after drinking syrup drugs, thinking that it would dilute the medicinal effect of the syrup. However, syrup and syrup are not the same and cannot be generalized.
In the 2020 edition of the Chinese Pharmacopoeia, syrup is defined as "an aqueous solution of concentrated sucrose containing an API drug". The reason why sucrose needs to be added to the syrup is mainly to mask the bad taste of the drug itself, improve the taste, and increase the adaptability of oral drugs.
If the syrup contains certain cooling cough medicines that can act directly on the pharynx, it is recommended not to drink water after drinking the syrup. After drinking the syrup for 15 minutes, drink a small amount of warm water, which can keep some of the drugs in the pharynx and exert its effect as soon as possible, such as Chuanbei cough syrup, emergency syrup, etc.
However, for those syrups that do not contain throat-clearing ingredients and only contain drug ** ingredients, you can drink warm water to rinse your mouth immediately after taking the medicine, which can not only avoid excessive sugar retention in the pharynx and irritate the throat, but also make the drug concentrate in the stomach as soon as possible to promote drug absorption. For example, commonly used phlegm drugs, ambroxol hydrochloride syrup, etc.
In addition, although some syrups are very sweet, the medicinal taste is still relatively strong, and if such drugs are given to children without drinking water, they will cause children to regurgitate and vomit, affecting the effect of taking the medicine. In this case, warm water should be given immediately after drinking the medicine to relieve the unpleasant taste of the drug and reduce the incidence of vomiting.
Myth: Conditioner is good and safe to use for washing clothes.
Truth Many people on the Internet must have heard of the life tips for using conditioner - "In addition to hair care, hair conditioner can also be used to wash clothes, wash wool sweaters, mop the floor, in short, it can be used for cleaning scenes at home."
However, conditioner is not a panacea. The main ingredient of conditioner, cetearyltrimonium chloride, is a surfactant, which has a certain cleaning and sterilization effect, so it can theoretically be used to wash clothes and mop the floor, but its cleaning ability is limited.
As for using it to care for pets, the profession is right, but the safety of pet licking needs to be considered. In this regard, the manufacturer's official response is also "not recommended".
Speaking of washing sweaters with conditioner, the main formula of wool conditioner is similar to conditioner, so conditioner is really useful when used on wool. However, it should be noted that most wool sweaters do not use 100% wool, in which case conditioner is not very suitable, for example, the high water content in the conditioner may affect the washing effect of the wool sweater.
Myth: Expensive calcium tablets have a better effect on calcium supplementation.
Truth When buying calcium supplements, you should choose the right supplement according to your needs. Calcium supplementation products that use inorganic calcium such as calcium carbonate and calcium phosphate as calcium sources have the highest calcium content and are cheaper, which is a more economical and efficient choice.
However, the digestion and absorption process of inorganic calcium needs to consume a large amount of gastric acid, and for people with insufficient gastric acid secretion, the absorption effect will be much worse.
There is also a calcium supplement - amino acid chelated calcium, which chelates amino acid molecules with calcium ions, and the absorption also does not depend on gastric acid and the absorption rate is high, ** relatively little, and is more suitable for infants, the elderly and pregnant women.
The key to calcium supplementation is to achieve the proper intake and absorption of calcium. In addition to taking calcium supplements, a good lifestyle such as sun exposure and more exercise is also a good remedy for calcium supplementation. Spending more time outdoors in the sun can increase the body's synthesis of vitamin D, which promotes calcium absorption.
Text: Reporter Li Jie.
*: Beijing Youth Daily.