Just passed April, the grass grew and the birds were flying, and the spring was already strong. Our daily popular science rumor refutation content solves doubts and dispels cognitive misunderstandings from all aspects such as natural science, food safety, beauty and health, and global current hot topics. Among these contents, which one receives the most attention? Let’s take a look at the rumor list in April!
1
Young people, good health, no matter how high blood pressure is
Rumor content: Many young people in their twenties and thirties have High blood pressure . Most of them don’t feel uncomfortable. They accidentally found that their blood pressure was high, and they also felt it didn’t matter. They still smoke, drink, stay up late, and ignore the problem of their high blood pressure. When asking the reason, you will also say, "I am still young, in good health, and my blood pressure is not affected."
True interpretation: This statement is incorrect. Most middle-aged and young patients with hypertension have mild (grade 1) hypertension. Compared with the elderly, the course of hypertension and has a short course of disease and the organ damage caused by lightness, and the cardiovascular risk is mostly at a low-risk and medium-risk level. However, in recent years, the proportion of middle-aged and young and middle-aged hypertensive patients with obesity and glycolipid metabolism disorders has gradually increased, and the cardiovascular risk of middle-aged and young and middle-aged hypertensive people has increased. For middle-aged and young patients with hypertension, long-term and lifelong risk assessment should be paid attention to. Therefore, young people should control their blood pressure more actively.
2
Off-season fruit causes premature puberty
Rumor content: Recently, the online discussion on the reasons for "9-year-old girls having menstruation" has once again aroused everyone's attention to children's premature puberty. In fact, whether it is the first menstrual period of a girl or the appearance of a "muscle" in a boy, it is a normal physiological phenomenon and a sign of the beginning of sexual development. However, these physiological phenomena appear in children in advance, which will always make many parents worried. Some people on the Internet believe that precocious puberty is caused by children eating off-season fruits.
The truth interpretation: There is currently no evidence that eating off-season fruits can lead to premature ripening. The causes of precocious puberty in children are very complicated, and diet is only one of the influencing factors. However, children's excessive intake of high-protein, foods containing sex hormones, nutritional tonics, and fried fast foods does increase the risk of premature puberty; obesity caused by overnutrition can also easily lead to changes in children's hormone levels, which in turn induces premature puberty. However, it can be safe to eat whether the fruit is in season or off-season.
3
cervical spondylosis should not be used for pillows
rumor content: popular application of the Internet and computers and smartphones has made it common for many people to work at their desks all day long or swipe their phones until late at night. As the saying goes, the whole nation is a "head-downing person", the incidence of cervical spondylosis has also increased year by year, and the incidence of patients is gradually becoming younger. Once cervical spondylosis occurs, it may cause a split headache, and may also cause completely disobedient to the shoulders and arms. In severe cases, it may also radiate to the chest and back, and even cause paralysis! When encountering these situations, some people will recommend: remove the pillow and lie flat and sleep for a few days.
The truth interpretation: does not recommend not using pillows during sleep for a long time. From a medical point of view, it is OK to not use a pillow for a short period of time, as long as the cervical spine feels comfortable and can fall asleep quietly. But if you don’t use a pillow for a long time, you may feel all kinds of discomfort. Because the cervical spine and cervical spondylosis are in overextension for a long time, it is easy to cause excessive stretching of the anterior muscles of the cervical spine, which in turn leads to muscle strain and premature degeneration. Therefore, when the pain symptoms disappear, using a pillow during sleep is better for the cervical health.
4
Hydrogen fuel cell Automotive unsafe
Rumor content: Under the guidance of the new energy policy, from hybrid to pure electric vehicles, cars have become a new vehicle that no longer rely solely on oil power. As the pure electric vehicle market ownership continues to rise, various problems continue to emerge. At this time, a new type of automobile fuel energy - hydrogen fuel has entered people's field of vision. It is said that since the car itself has a collision risk, the high-pressure hydrogen bottle on hydrogen fuel cell vehicles is like a potential "bomb", so hydrogen fuel cell vehicles are not safe.
The truth interpretation: Hydrogen fuel cell vehicles have high safety and reliability. Hydrogen fuel is a new type of automobile fuel energy, both environmentally friendly and energy-saving. As early as the 19th century, people began to explore the application devices of hydrogen fuel. Compared with electric vehicles, hydrogen fuel cell vehicles have lower cost, longer battery life, and less affected by ambient temperature; in addition, artificial ignition experiments have proven that the possibility of hydrogen fuel cell vehicles explode on open roads is very small, so hydrogen fuel cell vehicles have very high safety. Hydrogen fuel cell vehicles have been commercialized and are expected to replace traditional fuel vehicles to achieve green travel in the future.
5
Suez Canal is so easy to block, so we should widen and dig a little deeper
Rumor content: March 23, 2021 ( Egypt local time), the giant container freighter " Ever Given " blocked the Suez Canal for some reason. However, a week later (April 6, Beijing time), the Suez Canal, which had just recovered from the suspension, was blocked again due to a failure of an Italian tanker engine called Rumford. The frequent congestion of the Suez Canal has become the focus of attention of governments and people around the world. It not only causes sky-high losses, but also indirectly leads to rising global oil prices. It seems that the Suez Canal should be broadened and digged a little deeper.
True interpretation: This practice is not advisable. The Suez Canal is a waterway parallel to sea level. It connects Egypt to the Suez area, connects to the Mediterranean and the Red Sea, and provides the closest route from Europe to the Indian Ocean and the Western Pacific Ocean. If the deep digging channel is widened, ship owners and carriers will inevitably re-customize the larger version of the "top-grid ship". If you are not careful, it will lead to a new round of ships stranded and canal waterways blocked. Therefore, river channels cannot be broadened to solve the current problem of congestion of waterways, causing uncontrollable construction competitions by ship owners and carriers, and thus causing a new round of waterways blockage.
6
Stem cell skin care products can repair the skin and anti-aging
Rumor content: It is said that "umbilical cord blood mask", " plant stem cell ", "placenta extract essence" and other cosmetics all contain stem cell components, which have magical effects such as repairing skin cell damage, extending cell lifespan, and anti-aging.
True interpretation: In fact, these products do not have the above magical effects. Although stem cells really exist in the human body, stem cells have not been applied to people's daily lives and are only at the level of laboratory research. In addition, from a biological point of view, cell aging is absolutely irreversible. The only possibility is to provide sufficient nutrients to the cells, which will temporarily mask the aging phenomenon. Although stem cell skin care products can stimulate the skin's natural repair function, even the most effective ingredients only work locally and in a short period of time and will not have the magical effect of "reversing age".
Editor:
Huang Weijia Deputy President of the Medical Branch of China Science and Technology Press
About the scientific rumors list
is published by China Association for Science and Technology . Experts are organized to hold a list review meeting every month, comprehensively comprehend standards such as timeliness and hazards, select hot rumors for special interpretation, and push them on the entire network.
Jointly published: Science Rumor Refuting Platform, China Internet Rumor Refuting Platform, " Learning to Strong Country " Learning Platform
Platform Support: Tencent is serious about rumors, Weibo Rumor Refuting, Headline Rumor Refuting, Douyin , Dad Review, NetEase Health
Expert comment:
rumor on the list this month is mainly based on health misunderstandings and social hotspots. There are many so-called health truths that are "conventional" in life, which may be wrong concepts and require the continuous persistence and efforts of generations of popular science workers; the occurrence of hot events is likely to cause different statements to appear, and when it is difficult to distinguish between true and false, it requires the public's clear judgment. (Tang Qin)
This issue of review expert (ranked by surname strokes)
Review team leader:
Tang Qin Director of the Science Popularization Department of the Chinese Medical Association Researcher
Review expert:
Ding Rongjing Peking University People's Hospital Deputy Chief Physician of the Department of Cardiology, Peking University People's Hospital Professor
Hao Xia Sichuan University Special Associate Researcher of the Institute of New Energy and Low Carbon Technology
Tang Yuhan Huazhong University of Science and Technology
Associate Professor of Nutrition and Food Hygiene
Huangyang Associate Professor of Environmental Science and Engineering, Jiageng College, Xiamen University
Article is published by the "Science Rumor Refuting Platform" (ID: Science_Facts) public account. Please indicate the source for reprinting
