The new season’s gossip list is released： hair dryer is an ＂artifact＂ for treating diseases, which is not credible.

　　Hair dryer "where to cure" all diseases disappear? Eating egg white won’t excrete stool? Don’t believe it! Say the important things three times, these are all rumors, rumors, rumors! On March 30th, the Beijing Association for Science and Technology, the Beijing website joint rumor platform, and the Beijing Science and Technology Journalists Editors Association announced the list of rumors in the new season, most of which were the so-called "science" that we once doubted.

　　Public WiFi is very risky?

　　At the CCTV "March 15th" party, there was an amazing scene: the audience’s mobile phones were all connected to the wireless network, and then they turned on one or two commonly used consumer software. As a result, all kinds of addresses, names, ID numbers and bank card numbers were displayed on the big screen. Did you feel transparent?

　　Truth: Professor Ma Yan from the Network Technology Research Institute of Beijing University of Posts and Telecommunications said that whether it is home WiFi or public WiFi, there is the possibility of information being intercepted, but obviously some public WiFi without password protection is more dangerous. Send and receive information by mobile phone in WiFi environment, which is open, just like shouting in the office, and people around and next door can hear it.

　　But in fact, as long as we develop good habits, it is far from being so exaggerated as we see. The most important thing is that you can’t choose WiFi from unknown sources, especially WiFi that is free and doesn’t need a password. Important operations such as online shopping, it is best to turn off WiFi, through the data network, to ensure the safety of funds.

　　Is the hair dryer an "artifact" for treating diseases?

　　Recently, many WeChat WeChat official account posts articles about "Hair dryer can cure diseases", such as treating colds, frostbite, stuffy nose, blowing nose, feet and navel. Some of the treatments in the articles are imaginative, and the hair dryer is really regarded as a modern plug-in version of "dog skin plaster".

　　Truth: The hot air of the hair dryer may have a little auxiliary effect on relieving some symptoms, but it is obviously unreliable to rely on it to treat diseases. When improperly operated, it may even cause some side effects, such as burns. Experts suggest that it is best not to try to treat a disease with a hair dryer easily.

　　Take the treatment of rhinitis and nasal congestion with hair dryer as an example. The nasal cavity needs a moist environment. Blowing the nasal cavity with the blower wind is very destructive to the nasal mucosa, and it will also weaken the function of cleaning the virus in the nasal cavity, making the nasal cavity drier and more uncomfortable. If there is inflammation in the nasal cavity, this method is likely to aggravate the disease. As for killing the flu virus in the nasal cavity, it is too small to look down on the flu virus.

　　There are also "hair dryer series remedies" such as neck blowing for cervical spondylosis and foot blowing for tinea pedis, which have not been confirmed in clinic.

　　Does yogurt taste better when heated?

　　Recently, some readers found that in some roadside shops, some vendors were sipping hot "old yogurt". "Yogurt is not refrigerated? Will it taste better after heating? "

　　Truth: The production process of yogurt is fermented by adding strains to fresh milk. Many yogurt strains used in the market are Lactobacillus bulgaricus and Streptococcus thermophilus. 40℃ to 42℃ is the best breeding temperature for these two kinds of bacteria.

　　The most reasonable way to heat yogurt is to slowly heat it with warm water of about 50℃. However, it is worth noting that over 50℃, it may kill the strains and affect the quality of yogurt. Therefore, you can’t use boiling water to heat it, but microwave is even more undesirable, because microwave will destroy the nutrition of yogurt and affect the taste. In addition, not all yogurts are suitable for heating and drinking, such as solidified yogurts. Once heated, it may produce a layer of liquid on the surface, so it is best not to drink it.

　　Eat mushroom poisoning because of food phase grams?

　　Not long ago, there was a rumor circulating in the circle of friends that many people were poisoned and died because of improper consumption of mushrooms. Rumors also say that mushrooms should not be eaten with eggplant, millet, rhubarb rice and other foods, otherwise it will produce toxins. Is there any scientific basis for this statement?

　　Truth: The saying that food is mutually compatible has been popular among the people, but it has not been scientifically confirmed. In fact, the so-called mutual compatibility is mostly caused by unclean diet and a few special allergic reactions. There is no scientific basis for "mushrooms will produce toxins when eaten with eggplant, millet and rice". In fact, there are many cases of edible mushroom poisoning in China every year in the season of mushroom sales, and the cause of poisoning is almost all because of eating poisonous mushrooms by mistake rather than eating food.

　　Eat egg white, no shit?

　　There are many rumors about food, clothing, housing and transportation. Recently, there was one: "The absorption rate of egg protein is close to 100%, so if you eat egg white, you won’t defecate." Right or wrong?

　　Truth: First of all, eggs are really a good source of protein. In the human body, there are eight kinds of amino acids that cannot be synthesized by themselves and need to be obtained from food, which are called essential amino acids. These eight kinds of amino acids are available in eggs, which are still very high, and the composition of amino acids in egg protein is very close to the human needs.

　　So is the protein absorption rate of eggs 100%? Digestion and absorption is a very complicated process. The absorption rate is not only related to the properties of food itself, but also varies from person to person. Therefore, some food will always turn into residue and enter the colon. Therefore, it is impossible to "eat egg white without stool".

　　Did you eat too much salt and get freckles?

　　Recently, a "Harm of Salt" has been quietly circulated on the Internet. It mentioned: "The doctor said that when eating more salt, due to the osmotic pressure, the water in the body tissue will decrease, and the water discharged from the body will increase, which is not conducive to the water retention of the skin. Too much salt, in addition to making the face dark yellow, is likely to lead to freckles on the cheeks. "

　　Truth: The human body is a complex and sophisticated instrument. Eating more salt will not lead to the reduction of water in the body. Freckle is a yellow-brown pigment spot, which is more common in young and middle-aged women. A long time ago, doctors noticed the family aggregation tendency of freckles. In other words, parents have freckles, and the probability of children having freckles will greatly increase. At present, it is believed that freckles are mainly affected by heredity and also related to sunshine.

　　Therefore, although the high-sodium diet has many hazards, the "black pot" of freckles can’t really make people carry it.

　　A big strawberry because of hormones?

　　Strawberries went on the market in March, and an article entitled "Identification of Hormone Strawberries" also heated up the Internet. At present, most of the big strawberries appearing on the market are "Lucky Fragrant" strawberries, mostly produced in Zhuanghe, Dalian. The rumor that all strawberry growers in Zhuanghe denied giving hormones to strawberries made people begin to doubt the big strawberries.

　　Truth: Relevant experts said that "Xingxiang" strawberry is a hybrid variety introduced from Japan, and it is very big in itself.

　　Jiang Zhuojun, vice chairman of Strawberry Branch of China Horticultural Society and a professor at Qingdao Agricultural University, said that the "hormone strawberry identification method" rumored on the Internet is actually unscientific. He believes that "hormone is a substance that exists in the plant itself. If the amount of hormone in the plant itself is insufficient, it can be artificially increased in an appropriate amount to adjust its normal growth state. This is commonly known as hormone beating." Jiang Zhuojun said, "But there are strict requirements for hormone injection. Excessive injection will lead to failure. The appearance and taste of strawberries will be very poor, and they will not sell well in the market. Fruit farmers generally don’t do this." The appearance of "hollow strawberry" is also the characteristic of "big fruit type" strawberry varieties. "Of course, this will also be related to fertilization. Too high temperature and too much fertilizer and water will easily lead to hollowness."

　　Is tulip really poisonous?

　　In the early spring garden, the graceful tulips are the first to bloom. Recently, a "tulip poison theory" has quietly spread on the Internet.

　　Truth: Tulips, as the national flower of the Netherlands, have been planted outdoors or watched indoors for a hundred years in Europe. I have never heard that tulips are harmful to my health. Objectively speaking, tulip bulbs have certain toxicity. The so-called "toxic" is just to remind people not to eat tulip bulbs. In fact, people just appreciate flowers and don’t eat them. How can they be poisoned?

　　Liu Su, a popular science expert in Chenshan Botanical Garden, pointed out that as long as it is not in direct skin contact with tulips (especially tulips with wounds on plants) for a long time, it will not be poisoned.