
流言一:接吻会传染病菌
吻能传病,概因这是一种口水交换式的亲密接触。换言之,口水、唇舌、口腔内的病菌是致病关键。比如,唇疱疹是1型单纯疱疹病毒在嘴唇上的留下的杰作-白色小水庖,它就能通过接吻传播。
真相:乙肝与艾滋病,能通过接吻传播吗?这是个值得细说的问题。一般的,艾滋病主要通过性接触、血液和母婴三种途径传播。尽管唾液里也会有艾滋病毒,却没有接吻传播艾滋病的病例报道。原因可能是唾液中艾滋病毒含量低微,不足以造成感染。乙肝的传播方式则广泛一些,包括母婴、输血、密切接触及性传播等,法式深吻或被咬伤也有可能传播乙肝。

流言二:可乐“杀精”
2008年的“搞笑诺贝尔奖”尤其引人关注,一个很重要的原因是“化学奖”被授予一项大家十分关心的研究:可乐究竟能否杀精。事实上,“可乐杀精”是最有影响力的“都市传说”之一。相信每个人都或多或少听过几次这个说法。
真相:2003年,在美国生殖医学年会上,来自巴西的法比奥・帕斯卡鲁图(Fabio Pasqualotto)基于对750名男同胞的研究指出,喝咖啡的男性的精子活动度反而更好,其中发挥关键作用的就是咖啡因。面对传闻时,怀有科学精神是不可少的。以讹传讹的“喝可乐会杀精,男青年需谨慎”,你完全可以无视。

流言三:一定要睡足7小时
大部分人需要的睡眠时间约为每天7-8小时,不久前,芬兰国家健康与福利研究所对睡眠障碍和失眠的研究显示,每晚保证7-8小时睡眠的人在认知能力测试中得到的分数最高,而每晚睡眠超过9小时或只有6小时的人所得分数较低。
真相:如此看来,睡得太多和睡得过少一样,都不是好事。女性睡眠质量的好坏有时会受到月经、怀孕、分娩和和激素分泌变化的影响,在这些不同的生理阶段,睡眠障碍的发生几率更高。另外,女性比男性进入和保持深睡眠的难度几乎高一倍,这意味着,女性平均每天睡眠时间至少比男性多15分钟才能满足次日的脑力和体力能量需求。

流言四:喝奶引发肾结石
由于牛奶富含钙质,人们不禁担心喝牛奶会更容易患肾结石。事实上,喝牛奶并不会提高患肾结石的风险。
真相:机体这个复杂系统很巧妙地平衡了高钙与肾结石的关系。虽然高钙饮品势必增加尿液内钙的排泄量,但却可以降低尿液内草酸的排泄,从而使得尿液内草酸及钙的比值明显降低,反倒不容易形成草酸钙结晶。因此,从预防肾结石的角度说,多喝高钙饮品并没什么错。
豆奶、豆浆这类饮品也富含钙质、蛋白质及嘌呤,对人体善莫大焉,但人们担心它们是否会增加患肾结石的风险性。没错!豆类饮品的确可能增加患肾结石的风险,但那却是由豆类中的草酸盐所导致的。所以别担心,高营养的豆类饮品对正常人来说没有任何问题,只不过患肾结石、痛风的人还是应该少喝为妙。

流言五:瘦肉精真的不用担心
真相:猪饲料中的盐酸克伦特罗通常是人正常用药剂量的10倍。长时间使用后,它们很容易在猪的内脏器官里蓄积残留。这是人出现瘦肉精中毒症状的原因。换言之,中毒其实是人体内药物过量。瘦肉精多属β-受体激动剂,受体被激活后,人就会像“打了鸡血”一样-心脏兴奋起来,心跳加快、血压升高,严重者会出现本文开头介绍的症状。
目前,大多数国家均已禁止在畜禽饲料添加盐酸克伦特罗,因为它的副作用实在太大。不过,另一种瘦肉精莱克多巴胺却并未退场。在年人均消费猪肉30千克的美国,餐桌上的猪肉里多多少少都含有这种物质。

流言六:解酒药让你千杯不醉
有些解酒药的使用说明中会有“本药品药效强劲,服用时请同时饮用两大杯水,睡前再饮一杯”之类的话。
真相:这些药品的“神效”已不重要,重点在于你喝了很多水,被人体吸收后,扩充了血管容量,从而降低血液里的酒精浓度,一定程度上缓解了醉酒后的口干和胃部不适症状。有些人还会在饮酒前服用达喜等胃药,它们也只能对饮酒产生的胃黏膜烧灼感有一定缓解作用。
标榜具有解酒功效的药物,多半只起到安慰剂的作用。解酒药多含氨基酸、维生素和各种活性酶,顶多有缓解头痛、恶心的作用,但绝不会使你酒量倍增,千杯不醉。当你酒醉瘫软,心中茫然时,最好的药物是时间。身体需要时间来代谢清除超量的酒精。

流言七:长时间用手机会致癌
一直以来,公众相信手机致癌的说法,更多地是出于戒备原则(Precautionary Principle)进行“有罪推定”。换言之,只要人们怀疑手机的使用可能对人产生健康风险或危害,就需要相关方面通过数据或证据来举证说明手机使用到底对健康有无害处。提出手机致癌这种说法非常简单,却苦了全世界各地科学界的研究者。首先,一个只能得到阴性结果的研究是相当耗费人力和物力资源的;其次,进行这种研究本身就会增加公众的恐慌和焦虑,反而帮助散播了手机致癌的说法。
真相:尽管没有科学研究证明使用手机会引起癌症,但人们本能地认为这种手机辐射是不好的。那么,如何有效减少这种辐射呢?美国食品药品管理局与联邦通信委员会曾提出一项建议,简单说来就是四个字――长话短说。如果手边有普通电话,就不要使用手机;如果使用手机,就请多使用免提装置,或使耳朵与手机之间保持一定的距离。

流言八:钛圈能治颈椎病
说白了只是装饰品,为何有些人觉得佩戴钛圈后有效果呢?其实,这多半是一种心理暗示。普通人并不了解钛金属的性质,具备的医学知识不多,加之钛圈销售店铺用一般人看不懂的外文说明书以及各种高深的专业词汇做广告宣传,常会让消费者晕头转向,误认为钛圈是一种高科技医学产品,从而产生购买的冲动欲望。
真相:还是让科学实验说话吧。浙江大学体育科学与技术研究所王健教授曾做了一项试验,即采用科学仪器检测佩戴钛圈和不戴钛圈者提相同重量的水时,其用力肌肉传出的肌电信号。结果表明,钛圈对肌电并无影响。而肌电能客观地反映肌肉用力的程度,换言之,钛圈不会让你的颈椎更觉得省力。

流言九:功能饮料很必须
功能饮料并不玄乎。通俗点说,普通饮料里加入一定的功能因子,稍具调节人体机能、增强免疫力等保健作用,便摇身升级为功能饮料了。目前,这些功能因子多是咖啡因、牛磺酸、肌醇、维生素及中草药活性成分等。据称,它们能缓解疲劳、提高人的注意力等。
真相:功能饮料并非人人适合。以其中的运动型饮料为例,它含有钠钾钙镁成分,只适合运动后饮用,以补充人体丢失的部分电解质,将其作为日常饮品是错误选择。运动饮料中糖含量的适当比例应为6%-7%,这既保证了人体最大程度的吸收,也能防止血糖瞬时升高。一些功能饮料的糖分含量过高,对人体反而起到利尿作用,使肾脏加速排出水分。这些饮料不仅没有解渴作用,还适得其反,让身体更加缺水。

流言十:越宅越抑郁
国内抑郁症患病人数几近四千万。大量研究证实,30%-50% 的人在一生中的某些时刻都曾是符合现代心理学诊断标准的抑郁症患者。有报告称,至2020年,单向重型抑郁症将成为全球疾病负担第二大原因,仅次于缺血性心脏病。
真相:在预防抑郁方面,兰伯特教授建议宅男宅女们:“专注于织毛衣或者制作剪贴簿这类事情可以把你从生活压力中解脱出来,让大脑以一种有益于心理健康的方式运行。出去逛公园或者去体育馆做运动,尤其是进行一些我们认为有意义的活动,同样可以促进重要的情感神经化学物质的分泌,如5-HT和内啡肽。”
与服用药物相比,自身多活动能使大脑以更有意义的方式运转。或许,我们都该学学许三多的生活哲学-活着就是做有意义的事,有意义的事就是好好活着






艾滋病不治会早死,早治才康复 艾滋病不治会早死,早治才康复 艾滋病不治会早死,早治才康复 艾滋病不治会早死,早治才康复
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图示∶2011年5月正式出版的《中国特色医疗金鉴》登载的刘君主任及其机构事迹 |
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Secret: Ten of the most ferocious health rumors (Photos)
2011-09-19 11:00 Source: Xinhua
Rumors I: kissing disease bacteria
Kiss can pass disease, none because this is a type of intimate contact with saliva exchange. In other words, saliva, tongue, oral pathogenic bacteria is critical. For example, cold sores are herpes simplex virus type 1 on the left lip masterpiece - small water white kitchen, it spread through kissing.
Truth: hepatitis B and AIDS, spread it through kissing? This is a question worthy of elaborate. In general, AIDS is primarily through sexual contact, blood and mother to child transmission in three ways. Although the saliva will also have HIV, but no kissing the spread of AIDS cases reported. May be due to low levels of HIV in saliva, not enough to cause infection. Mode of transmission of hepatitis B is widespread, and includes mother and child, blood transfusion, and sexually transmitted and other close contact, or bites of French kissing may also spread hepatitis.
Rumors II: Coke "spermicide"
2008's "funny Nobel Prize" of particular concern, a very important reason is the "Chemistry" was awarded a study of great concern to us: whether we can spermicide Coke. In fact, the "Coke spermicide" is the most influential of the "urban legend" is one. I believe everyone is more or less heard this argument several times.
Truth: In 2003, American Society for Reproductive Medicine annual meeting, from Brazil 法比奥帕斯卡鲁 Figure (Fabio Pasqualotto) based on a study of 750 male compatriots that the coffee activity in men's sperm instead of better, which play a key role is the caffeine. The face of rumors, cherish the spirit of science is indispensable. Repeated the baseless assertion of the "Coke will kill sperm, young men need to be cautious," you can ignore.
Rumors three: Be sure to get enough sleep 7 hours
Most people need to sleep for about 7-8 hours a day, not long ago, the Finnish National Institute of Health and Welfare of sleep disorders and insomnia, studies show that 7-8 hours of sleep every night to ensure that people in cognitive tests to get the highest scores, while more than nine hours of sleep every night or only 6 hours were obtained with a lower score.
Truth: It seems that sleep too much and too little sleep, like, not a good thing. The quality of women's sleep sometimes by menstruation, pregnancy, childbirth and the impact of changes and hormone secretion in these different physiological stages of sleep disorders were more likely to occur. In addition, more women than men enter and the difficulty of maintaining deep sleep almost twice as high, which means that average daily sleep time, women outnumber men by at least 15 minutes to meet the next day's mental and physical energy demand.
Rumors four: milk caused kidney stones
Because milk is rich in calcium, it can not help but worry that drinking milk will be more likely to develop kidney stones. In fact, drinking milk does not increase risk of kidney stones.
Truth: the body of this complex system is a clever balance between the relationship between calcium and kidney stones. Although the drink is bound to increase urinary calcium excretion of calcium, but it can reduce oxalate excretion in the urine, making urine oxalate and calcium were significantly lower, and have actually not easy to form calcium oxalate crystals. Therefore, from the point of view to prevent kidney stones, drink plenty of calcium did not drink anything wrong.
Soy milk, soy milk, such drinks are rich in calcium, protein and purine, the human body itself a remarkable achievement, but people worry whether they will increase the risk of kidney stones. Yes! Soy beverages may indeed increase the risk of kidney stones, but it is by the beans of oxalate caused. So do not worry, highly nutritious soy beverages is no problem for normal people, but suffering from kidney stones, gout, people should drink less or better.
Rumors five: do not worry about clenbuterol
Truth: pig feed people Clenbuterol is usually 10 times the normal dose. After prolonged use, they are easy to accumulate in internal organs of pigs left. This is one of clenbuterol poisoning, the symptoms appear. In other words, poisoning, drug overdose is the human body. Clenbuterol is mostly β-receptor agonist, receptors are activated, people will be like "playing with blood," the same - the heart of excited, rapid heartbeat, high blood pressure, severe symptoms described at the beginning of this article .
Currently, most countries have banned animal feed Add clenbuterol, side effects because it is too great. However, another exit but did not lean ractopamine. In per capita consumption of pork 30 kg USA, where more or less meat on the table contains the substance.
Rumors Six: hangover medicine you never drunk
Some hangover medicine instructions for use will be "strong efficacy of this drug, when taken while drinking two glasses of water, then drink a cup before going to bed" kind of thing.
Truth: These drugs "magic" is not important, the focus is that you drink a lot of water absorbed by the body, expand the vascular volume, thereby reducing the blood alcohol concentration, to some extent alleviate the dry mouth and after drinking stomach discomfort. Some people will be drinking before taking up the stomach so happy, they can only produce gastric burning sensation alcohol have a role in mitigation.
Advertised with a hangover effect of the drug, she has only played a placebo effect. Hangover medicine containing more amino acids, vitamins and various enzymes, at most, can alleviate the headaches, nausea effect, but not make you double drinker, never drunk. When you are drunk limp, dazed mind, the best medicine is time. Metabolism of the body needs time to clear the excess alcohol.
Rumors Seven: long hand opportunity to carcinogenic
All along, saying the public believe that mobile phones cause cancer, are more alert because of the principle (Precautionary Principle) a "presumption of guilt." In other words, as long as people suspected of cell phone use may have on human health risks or hazards, you need the relevant aspects of the burden of proof by data or evidence to explain whether the use of mobile phones in the end harmful to health. Put forward this argument is very simple mobile phone cancer, but they do the scientific community of researchers around the world. First, a study can only get negative results is very labor intensive and material resources; Secondly, such research itself will increase the public's fear and anxiety, but to help spread the cell phone cancer claims.
Truth: Although there is no scientific proof of use of mobile phones cause cancer, but people instinctively think that cell phone radiation is bad. So, how to effectively reduce the radiation it? U.S. Food and Drug Administration and the Federal Communications Commission has put forward a proposal, it simply is two words - long story short. If you do have a regular phone, do not use the phone; If you use the phone, you encouraged to use hands-free device, or the phone between ear and maintain a certain distance.
Rumors Eight: titanium ring can cure cervical spondylosis
Plainly just decorations, why some people think wearing a titanium ring after the effect? In fact, this is mostly a psychological hint. Ordinary people do not understand the nature of titanium, with little medical knowledge, combined with a titanium ring sales outlets generally do not understand the foreign language instructions and a variety of highly specialized vocabulary to do advertising, often leave consumers confused and disoriented, mistakenly believe that titanium circle is a high-tech medical products to the desire to produce the impulse to buy.
Truth: let science experiments speak for themselves. Zhejiang University, Institute for Physical Science and Technology, Professor Wang Jian has done a test, that is, using scientific equipment to detect wear titanium rings and titanium rings are not wearing the same weight of water provided, its outgoing EMG muscle force. The results showed that titanium ring has no effect on the EMG. The EMG can objectively reflect the degree of muscle force, in other words, titanium rings will not make your neck feel even more effort.
Rumors Nine: functional beverages are to be
Functional beverages is not iffy. Popular speaking, the ordinary drink to add some functionality factor, with a bit regulate body functions, enhance immunity and other health effects, they suddenly upgraded to a functional beverage. Currently, these functions are mostly factors caffeine, taurine, inositol, vitamins and herbal active ingredients. Allegedly, they can relieve fatigue, improve the people's attention and so on.
Truth: Functional beverages are not suitable for everyone. To one of the sports drinks, for example, sodium potassium calcium and magnesium components it contains, is only suitable for drinking after exercise to supplement the missing parts of the body electrolytes, as a daily beverage choice is wrong. Sugar content of sports drinks in the appropriate proportion of 6% -7%, which not only ensures maximum absorption of the body, but also to prevent transient increase in blood sugar. Some features high sugar content drinks, but play a diuretic effect on the human body, the kidneys speed up discharge water. The role of these drinks not only did not quench their thirst, but also counterproductive, the body is more water.
Rumors ten: the more depressed the more house
The number of patients with depression almost domestic 40 million. Numerous studies confirm that 30% -50% of the people some time in their lives is in line with modern psychology have diagnostic criteria for depression. There are reports that by 2020, one-way heavy depression will become the world's second-largest cause of disease burden, second only to ischemic heart disease.
Truth: in the prevention of depression, the Lambert Professor of female otaku house who suggested: "focus on the knit or scrapbook kind of thing can make you freed from the pressures of life, the brain in a mental health benefit run. out of the park or go to the gym to do exercise, especially for some of us believe that meaningful activities can also promote the importance of emotional nerves secrete chemical substances, such as 5-HT and endorphins. "
Compared with drugs, more than their own activities to allow the brain to operate more meaningful way. Perhaps, we all learn Sando of the philosophy of life - to live is to do meaningful things, meaningful things that I'm alive