rumor 1 chewing gum will stick to your intestines
since childhood, we have often heard adults say that never swallow gum into your stomach, otherwise it will stick to your intestines and endanger your health and life.
truth: BBC focus magazine once invited medical experts to answer this question. Experts said that chewing gum is really difficult to digest, but it still has no ability to escape the digestive system of normal people. It will be digested in about 3 days at most and finally discharged from the body, so it will not stick to the intestines. But in order to avoid accidents, it’s best not to give children chewing gum to avoid swallowing it into the trachea by mistake.
rumor 2 you can’t wash your hair during menstruation
China has had & ldquo; Confinement & rdquo; In addition, it has been circulating & ldquo; Women cannot wash their hair during menstruation & rdquo; It is believed that menstrual shampoo will aggravate dysmenorrhea, accelerate aging, cause hair loss, and have sequelae when you get old.
truth: Wang Junlan, deputy director of Gynecology of Nanjing Integrated Traditional Chinese and Western medicine hospital, believes that this is a misinformation. Women can wash their hair during menstruation. However, it should be reminded that you can’t wash your hair with cold water during menstruation. After washing your hair, you should use a hair dryer to dry it in time instead of natural drying. Don’t rush out when your hair is not dry, especially in winter or windy weather to avoid catching cold.
rumor 3 drops of blood can recognize relatives
in ancient costume TV dramas, we can often see the picture of drops of blood recognizing relatives: fill a bowl with clear water, drop two drops of blood into the bowl, blend is biological, and if not, there is no blood relationship. 222
: there is no scientific basis for admitting blood. Zhou Huiying, senior experimenter and director of the forensic material evidence room of the judicial expertise Institute of Jiangsu Provincial People’s Hospital, said that the blood contains many components, but a large proportion of them are water, so the blood will soon disperse when dripping into the water, that is to say, anyone’s blood can melt in the water. Therefore, there is no scientific basis for using it to prove whether there is blood relationship or not.
Rumor 4 wearing myopia glasses will make the eyes protrude
many people worry that wearing myopia glasses will cause the eyes to protrude and form & ldquo; Dead fish eye;, Affect the beauty, so refuse to wear glasses, resulting in worse and worse eyesight.
truth: glasses are not the culprit of eye deformation and bulge. Yu minbin, a professor at the eye center of Guangzhou Sun Yat Sen Medical University, said that after myopia, not only can’t see clearly, but the eye shape may change. Axial myopia is a common type of myopia. One of the symptoms of patients with medium and high axial myopia is that the axis of the eye will become longer, and the eyeball will become protruding from the side. Therefore, under normal circumstances, myopia itself will lead to eye protrusion, which has nothing to do with wearing glasses or not. Myopia patients should do a good job in the prevention and control of myopia, wear glasses scientifically, prevent the degree from deepening and prevent the eyes from continuing to deform.
rumors 5 eating too much monosodium glutamate will become stupid
there have been a lot of rumors about monosodium glutamate. Some people say that eating too much monosodium glutamate will lose hair, others say that eating too much monosodium glutamate will become stupid, resulting in symptoms such as memory loss and brain retardation.
truth: Ruan Guangfeng, a master of nutrition and food safety at China Agricultural University and a nutrition expert, said about & ldquo; Eating too much MSG will make you stupid & rdquo; At present, there is not enough evidence to prove. Monosodium glutamate is a condiment made from pure grain. Its main component is sodium glutamate, which contains sodium, which is the same as the sodium in table salt (sodium chloride). However, if the regular sodium intake is too high, it will increase the risk of hypertension and cardiovascular disease, so it is best to control the intake of monosodium glutamate. In addition, Zhai Fengying, deputy director of the Institute of nutrition and food safety of the China Center for Disease Control and prevention, said that in their survey, they found that there is a certain relationship between monosodium glutamate consumption of adult Chinese residents and overweight, that is, eating too much monosodium glutamate will get fat, so it is more necessary to control their intake.
rumors 6 you can’t eat soy sauce if you have a wound
it’s inevitable that your skin will be hurt in life. People often hope that the wound will not leave scars after healing. Therefore, many people have heard such warnings since childhood: during wound healing, do not eat dark foods such as soy sauce and chocolate, otherwise the newborn skin will turn black and leave scars.
truth: Pang Xiaowen, chief physician of Dermatology Department of Air Force General Hospital, said that this statement has no scientific basis. Whether the wound heals well or not and whether it will leave scars mainly depends on the size of the wound, the degree of infection, whether the debridement and suture in the treatment process are done well, whether the anti infection is in place, and the nutritional status of the human body. Therefore, the color of food will not affect wound healing. As for the blackening of the skin at the wound, it is mainly because the tyrosinase activity is activated after the skin cells are damaged, resulting in the production of melanin, which makes the skin look a little blackened. However, with the gradual repair of skin cells, melanin will slowly decompose until it disappears. In addition, if the skin is exposed to ultraviolet radiation for a long time during wound healing, it will also lead to skin blackening. Therefore, during wound healing, it is not necessary to avoid dark food, but to do a good job in anti infection and sunscreen, and avoid eating spicy and irritating food.
Rumor 7 acidic constitution will cause disease
& ldquo; Acidic constitution & rdquo; The saying that is the source of all diseases has spread widely in recent years; Theory & rdquo; Think & ldquo; If you can balance the pH of your body and turn your body into weak alkaline, cancer will be improved or cured& rdquo;
truth: this statement is purely pseudoscience and has no scientific basis. Professor Chen Yipu, honorary chairman of the nephrology branch of the Chinese Medical Association and chief physician of the Department of Nephrology of Beijing Anzhen Hospital, said that there is no & ldquo; Acidic constitution& ldquo; Alkaline Constitution & rdquo; In these words, the pH value of normal people will be stable between 7.35 and 7.45 under the regulation of the three regulating systems of the human body. In addition, the chairman of China Nutrition Society and the dietary guide for Chinese residents & middot; Cheng Yiyong, deputy editor in chief of 2007, also said, & ldquo; Pay attention to acid-base balance when choosing food & rdquo; The argument also lacks scientific basis and is not worth advocating.
rumor 8 cebe is a health killer
you can often see & ldquo; in the overwhelming advertisements of health products; Defecation & rdquo; This word, the slogan will claim that many diseases are caused by & ldquo; Defecation & rdquo; Cause, only clear & ldquo; Defecation & rdquo; The human body can be healthy.
truth: Ding Shuqing, deputy chief physician of anorectal Department of Nanjing Hospital of traditional Chinese medicine, said that there was no & ldquo; Defecation & rdquo; This concept. Zeng Jing, director of the Nutrition Department of the Guangdong Provincial Armed Police Corps Hospital, said, & ldquo; Defecation & rdquo; The argument is hype, secretly changing the medical & ldquo; Constipation & rdquo; This concept, and the vast majority of constipation can be improved by adjusting diet, exercise and other lifestyle. Ding Shuqing reminded not to blindly take & ldquo; Detoxifying drugs & rdquo; To clear & ldquo; Stool & rdquo;, To prevent damage to healthy qi.
rumors 9 mobile phone and WiFi radiation affect health
there have been endless claims that mobile phone and WiFi affect health. On wechat and microblog, there is even an experiment done by Danish middle school students: seeds placed in ordinary rooms can grow normally, while seeds placed in WiFi environment turn brown, and some even die.
truth: the World Health Organization points out that there is no evidence that mobile phone radiation will have a negative impact. Gao Yougang, Professor of the China branch of the electromagnetic noise and interference Committee of the International Union of radio Sciences, said that WiFi is actually a small LAN, and its transmitter and wireless router will produce certain electromagnetic radiation around. The working power of common wireless routers is mostly between 30 ~ 500 MW, which is lower than that of ordinary mobile phones (about 125 MW ~ 2 watts). Generally speaking, when you make a phone call for 20 minutes with your mobile phone, your body absorbs more radiation than when you use a wireless router for a year. Thus, WiFi radiation has little impact on health, and people don’t have to worry too much about mobile phone radiation.
Rumor 10 cooking food in microwave oven will cause cancer
an article entitled “please stop using microwave oven immediately” was widely circulated on the Internet. The article points out that microwave heating will change the molecular structure of food and produce new molecules that can not be recognized by the human body. These strange new molecules are toxic and may even cause cancer.
truth: Professor Zhang zhaoboring, an expert in microwave power application and measurement technology in China, said that microwave heating is completely physical heating. The principle is basically the same as that of conventional open fire heating, and the impact on food molecules is the same. Fan Zhihong, an associate professor of the food College of China Agricultural University, also said that microwave only heats the water molecules in food. The food itself has not undergone chemical changes and will not produce carcinogens. Lu Jianguo, director of the comprehensive inspection department of the national household appliance quality supervision and inspection center, believes that as long as the products are qualified, whether the radiation or food safety risks brought by the microwave oven are within the acceptable range of mankind, consumers should pay more attention to how to correctly use the microwave oven. For example, avoid heating for too long, and avoid putting ordinary plastic containers and plastic bags into the microwave oven for heating, Do not use closed containers, and do not heat shelled foods such as eggs.
rumor 11 L-carnitine is a weight loss myth
some so-called weight loss experts claim that L-carnitine is an ideal weight loss product without dieting, no side effects and significant effects.
truth: L-carnitine is not a complete lie, but an exaggerated myth. Song Xin, a nutritionist at Beijing Chaoyang Hospital, said that L-carnitine can only play & ldquo; Handling & rdquo; The role of fatty acids, if you do not cooperate with exercise, no amount of L-carnitine will help. L-carnitine widely exists in human cells, and healthy people do not need additional supplement. More importantly, a study published by six authoritative medical centers in the United States pointed out that L-carnitine will produce trimethylamine oxide after being used by bacteria in the human intestine, which may lead to atherosclerosis.
rumors 12 hair dryers are high radiation killers
& ldquo; The radiation of using the hair dryer for three consecutive times is equal to one X-ray & rdquo;, Such a saying has been circulating on the Internet. Others say that using a hair dryer to blow hair, if it acts on the head for a long time and at a close distance, it will be very lethal.
truth: Zhang Zhiqiang, director of the Environmental Protection Office of Peking University, said that ionizing radiation represented by X-ray and nuclear radiation will harm the human body for a long time due to its long wave length, high frequency and large energy