听力课堂TED音频栏目主要包括TED演讲的音频MP3及中英双语文稿，供各位英语爱好者学习使用。本文主要内容为演讲MP3+双语文稿:电子烟如何危害青少年，希望你会喜欢！

【演讲者及介绍】Suchitra Krishnan-Sarin

Suchitra Krishnan-Sarin专注于增进对成人和青少年的药物使用行为的理解。

【演讲主题】What you should know about vaping and e-cigarettes

关于电子烟你应该知道的事情

【中英文字幕】

翻译者 psjmz mz 校对者 Yu Xie

00:10

"It gets easier, right?" These are the words I often hear from young parents who are new to the game of worrying about their children. I tell them that it doesn't. It gets different, but there's always something to worry about as parents. I remember how I would lie half-awake at night listening to my son breathe when he was young and had asthma, and then, when he was a teen, until I heard the front door chime open, and I knew that he was home safe. Worrying about our kids comes with the territory.

“这变得更简单了，对吧？” 这是我经常从为孩子殚精竭虑的 年轻父母口中听到的话。 我告诉他们事情并不会变得更加容易， 实际上，事情只是变得不一样了， 为人父母总是有事情要担心。 我仍记得为了留意我儿子的呼吸声 是如何保持半清醒的状态 度过的每个夜晚， 因为他小时候患有哮喘病。 后来，等他十几岁的时候， 只有当我听到前门开门的铃声， 我才能确认他安全到家了。 为自己的孩子心神不定那是肯定的。

00:43

Now, many of these worries are about basic issues, like what they eat, where they are, who they're with. But we also need to keep an eye on new behaviors and fads. The latest craze is something that may not yet be on everyone's radar as a serious health concern, and that is the newfound popularity of vaping, or inhaling sweet aerosols produced by vaporizing e-liquids in e-cigarettes.

而这些担心大部分源于很平常的事情。 例如他们吃什么，他们在哪里， 他们和谁呆在一起。 但我们还需要时刻关注 社会上流行的新行为和新潮流。 最近很流行却没有引起广泛关注的， 关乎到严重的健康问题的新玩意， 是一经推出就迅速流行的电子烟， 或被称为吸入式甜味喷雾器， 这种喷雾器可以 将电子烟内的烟油蒸汽化。

01:12

E-cigarettes, or "vapes," as they are commonly called, are flying off the shelves like candy. This year, the e-cigarette market is expected to drive 26 billion dollars in sales worldwide. Over the next six years, that volume is expected to double. We have a lot of serious concerns about the health impact of vaping, and unfortunately, not nearly enough answers. This becomes even more concerning when you think of who uses e-cigarettes. E-cigarette use, at least in the US, has grown rapidly among youth and young adults -- our kids, our most vulnerable population. There was a 900 percent growth in the use of e-cigarettes by youth between 2012 and 2015. The most recent estimates suggest that approximately 3.6 million high school and middle school students have used e-cigarettes in the US.

电子烟，或者我们常说的 "蒸汽烟"， 正在像糖果一样风靡各个商店。 今年，全球电子烟市场的销售额 预计将达到260亿美元。 在未来六年， 这个数字预计将再翻上一番。 我们非常担心电子烟 对于健康的影响， 但不幸的是，我们几乎没有 得到强有力的解决方案。 当你想到那些电子烟的使用者时 你会变得更加担心。 电子烟的使用率，至少在美国， 在青少年和年轻的成年人中 正在迅速增长—— 我们的孩子 是最容易受影响的一代。 2012年至2015年，电子烟的使用率 在年轻人中上涨了900%。 最新的数据表示， 大约有360万美国高中生和初中生 曾经使用过电子烟。

02:09

Now, e-cigarettes were originally created to offer smokers a cleaner form of nicotine to help with their cigarette addiction. In the US, these devices come under the FDA's jurisdiction as a tobacco product. But the science on these devices has not been able to keep up with the rapid market growth, so regulations on the components of these devices and e-liquids are lagging. Current regulations do restrict sales of these devices to anyone under the age of 18, but these do not seem to have had much of an impact on the explosion in the use of these devices by teens.

电子烟的诞生本来是为了 给吸烟者提供一种更干净的尼古丁 来帮助他们戒烟。 在美国，这类设备作为一种烟草产品 受美国食品药品管理局的监管。 但这些设备在科学方面的发展 却没能跟上迅速发展的市场需求， 因此对电子香烟和烟油的成分监管 是滞后的。 目前这类设备有严格的销售规定， 规定不能售卖给十八岁以下的人， 但这些规定似乎并没有遏制青少年 使用电子烟的迅猛势头。

02:48

You know, the first time I heard of and saw an e-cigarette, I knew right away that teens would love it. These devices are technology on a stick, a perfect fit for the smartphone generation -- small, rechargeable, easy to use, easy to modify, nice smelling -- some even sync with your smartphone to let you know how much you have vaped. Even I was very drawn to these very clever devices. And since I had spent a long time researching teen and adult addictions, I immediately realized that these devices fit perfectly into the teen psyche.

我第一次听说和看见电子烟时， 我马上就知道青少年们会喜欢上它。 电子烟将高科技和一根小棒结合在一起， 非常迎合智能手机一代的需求—— 小巧、可重复使用，使用简单， 容易调节，味道好—— 有一些型号甚至可以和智能手机匹配， 让你知道你还能够使用多少时间。 连我都被这么智能的设备吸引住了。 当我花费了大量时间去研究 青少年和成年人对电子烟的沉迷现象后， 我迅速意识到电子香烟的设计 非常符合青少年的心理。

03:26

Teens are impulsive, and they love to try new things. They're also craving independence, and they love to make things their own. E-cigarettes meet these needs perfectly by allowing them the chance to both innovate and personalize their vape experience. They can choose from over 15,000 different e-liquid flavors and multiple nicotine concentrations. They can even create their own nicotine flavor combination. They can change how much vapor is produced from these devices by modifying the puff volume and the constituents and the power and temperature of the devices.

青少年们易冲动，喜欢探索新事物。 同时他们渴望独立， 喜欢创造属于自己的东西。 电子烟完美地符合了他们的需求， 电子烟能让他们有机会 去创新，去个性化 他们的抽烟体验。 他们可以从超过15000种 味道的烟油种类 和不同的尼古丁浓度中 选择自己喜欢的一款。 他们甚至还可以创造出 属于自己的味道和浓度。 他们可以通过调整烟油的用量和成分 或者烟雾的强度和温度 来控制电子烟的蒸汽量。

04:05

They can even use these devices for "cloud chasing." Cloud chasing, also called vape tricks or smoke tricks, involves producing large vape clouds with quirky shapes and names, like rings, dragons, ghosts ... Cloud chasers can even participate in cloud competitions and win prizes for creating the most innovative shaped clouds.

使用者还可以利用电子烟 来”追云逐雾”一番。 “追云逐雾”，也就是花式吐烟圈 或烟雾魔术， 即使用者吐出带有独特 图形和名字的的烟雾， 比如圆环，龙，幽灵等等。 花式吐烟者还可以参加吐烟圈比赛， 创造出最具创意的 烟雾形状的人就能获奖。

04:29

Teens can also change the strength and throat hit from the vapor by either vaporizing the e-liquid at higher temperatures or dripping the e-liquid directly onto a heated coil. They can even use these devices for marijuana vaping. And since the devices use lower temperatures and do not combust or burn the marijuana, they can do this very discreetly, without the distinctive smell of burnt marijuana. So they can really make these vape experiences their own, which may explain the astounding rise in the use of these devices by youth.

蒸汽的浓厚度和击喉感也可以 通过在高温下雾化烟油，或者直接 将烟油滴在加热线圈上来调整实现。 他们甚至可以使用电子烟来吸大麻。 由于使用电子烟时温度较低， 大麻不会燃烧， 使用者可以在不产生 明显气味的情况下 悄悄地吸食大麻。 因此电子烟真正满足了个性化的需求。 这大概也可以解释为什么 年轻人使用电子烟的数量激增。

05:04

E-cigarettes are technically a very simple device. There is a receptacle for the e-liquid which can be a tank, a pod or a plug. There is a battery that charges the coil, which then vaporizes the e-liquid. And then there is a mouthpiece, where the user can actually draw from the e-cigarette. In 2017, there were 466 e-cigarette devices in the marketplace. These range from cigarette-like devices which are also called "cigalikes" to tank systems, which are also called "pens." And then there are modified devices, which are also called "mods." Mods look nothing like a cigarette, and they come in various shapes and sizes, with different kinds of attachments and user adjustments. They're very popular for cloud chasing.

从技术上来讲，电子烟是 一种非常简单的设备。 其中包含一个储存烟油的容器， 可以是一个罐子，扁匣子或塞子。 还有一块为雾化烟油提供电力的电池。 还有一个烟嘴， 使用者可以从中吸取电子烟。 2017年，市场上有466种 不同类型的电子烟。 范围从外形类似真香烟的电子烟 到被称为“钢笔”的电子烟雾化器。 还有一款被称为”内嵌式 电子烟主机（Mods）“的改良装置。 Mods的外形看起来一点也不像香烟， 有不同的形状和大小可供选择， 还可以选择不同的配件和型号。 它们非常受花式吐烟圈者的欢迎。

05:54

The most recent entrance into the marketplace are the pod devices, which contain the e-liquid in a pod. These are very popular, by the way, among teens. An example of this is the Juul, which not only looks like a USB device but can also be plugged into a USB outlet to charge. Many teens do not even think that these are e-cigarettes, which has led to the use of terms like "juuling" instead of "vaping." Many of these devices are so discreet and produce so little vapor that teens are using them in classrooms and hiding them in objects like Sharpie pens, their clothes, their books.

最近才进入电子烟市场的 是一款被称为“烟弹”的产品， 内部含有烟油。 烟弹在青少年们中很流行。 其中一个例子就是 Juul， 它不仅外形酷似U盘， 还可以插入USB接口进行充电。 很多青少年甚至不认为这是电子烟， 甚至选择用 “Juuling” 这个词来代替“吸烟”。 大部分电子烟使用时声音很小， 产生的烟雾量也很少， 所以青少年们可以在教室里使用， 把电子烟藏在其他物件里面， 如记号笔，他们的衣服 或书本里。

06:31

Now, many teens think that these devices produce water vapor, and therefore, they are safe to use. But this could not be further from the truth. What is produced is not even a vapor, it's an aerosol, and let me tell you, the difference is quite pronounced. Aerosols contain many finely suspended particles of liquids and gases that are created from whatever is in the e-liquid. So an aerosol could contain propylene glycol and glycerin, which are solvents in the e-liquid. Now, these solvents are known to be safe for edible use, so for use in products that you eat, but we know very little about their safety following long-term inhalational exposure. The e-liquids can also contain alcohol, sometimes in high levels, and inhaling alcohol is known to have toxic effects on the brain.

很多青少年们误以为 电子烟所产生的是水雾， 认为吸电子烟是安全的。 但实际上，这离事实相差甚远。 电子烟释放的甚至都不是蒸汽， 而是气溶胶。 让我来告诉你们这两者的明显差异。 气溶胶含有大量可疑 的液体和气体微粒， 是从烟油中产生的。 气溶胶内含有丙二醇和甘油， 它们都是烟油的溶剂。 我们知道这些都是可食用溶剂， 可用于制作食物， 但我们对长时间接触和吸入这些 溶剂是否安全则知之甚少。 烟油里还含有酒精， 有时候还是高浓度酒精， 而我们都知道吸入酒精 会对大脑有毒害作用。

07:21

I told you earlier that the e-liquids contain over 15,000 different flavors. Here are some examples, some with very catchy but familiar names like "Skittles" and "Fruit Loops," and others with more exotic names like "Dragon's Milk" and "Tiger's Blood" and "Unicorn Puke." The e-liquid or the aerosol can also contain metallic particles like chromium, cadmium and lead. These are generated from the heating coil in the devices and are also known to have many toxic effects on vital organs. So no, let me make this very clear: what is produced is definitely not water vapor.

我刚才提过烟油有 超过15,000种味道。 这里有一些例子， 有些烟油有着非常抢眼和熟悉的名字， 例如“彩虹糖”或“水果棒棒糖”， 还有一些有着稀奇古怪的名字， 像是“恐龙奶”或“老虎血”， 还有“独角兽呕吐物”。 烟油和气溶胶内还含有金属颗粒， 如铬，镉和铅。 它们来自于电子烟里的加热线圈， 众所周知，这些元素对于人体的 重要器官都具有毒副作用。 所以我要再次申明： 电子烟产生的绝对不是水雾。

08:01

Exposure of the teen brain to nicotine through e-cigarettes is also very concerning. The teen brain is very sensitive to even low levels of nicotine and gets very easily addicted. In fact, we have known for a long time that 90 percent of smokers start smoking cigarettes prior to the age of 18. Those who start early are more addicted and have a harder time quitting smoking. In other words, and to quote a past FDA commissioner, "Nicotine addiction ... is a pediatric disease."

青少年的大脑通过电子烟 长期接触尼古丁 同样让人十分担心。 青少年的大脑即使对 低浓度尼古丁也很敏感， 非常容易上瘾。 实际上，我们一直都很清楚 90%的吸烟者都是 从18岁之前开始吸烟。 越早开始接触香烟的人越难戒烟。 或者，我引用 一位前药监局专员的话， ”尼古丁上瘾是一种儿科疾病。”

08:33

E-cigarettes can expose teens to a lot of nicotine. Many of these devices contain the amount of nicotine that is in a full pack of cigarettes. The more recent pod devices contain a nicotine salt, which has a smoother taste and is much easier to use and can produce rapid increases in brain nicotine levels. Teens who use e-cigarettes regularly report symptoms of craving -- feeling anxious when they don't have their e-cigarettes. All these are hallmarks of a behavioral addiction.

电子烟使青少年能够接触大量尼古丁。 很多电子烟的尼古丁含量 可以比得上整包香烟。 最新款的烟弹内还有尼古丁盐， 这可以让味道更佳清淡， 更容易入口， 还可以快速提高尼古丁入脑的速度。 经常使用电子烟的青少年 都有一种渴望的症状—— 在不吸电子烟时会感到焦虑。 这些都是他们上瘾的表现。

09:04

E-cigarettes are not only addictive but they also affect many other organs in the body. So nicotine, which is in e-cigarettes, for example, binds to a receptor called the nicotinic acetylcholine receptor, which plays a key role in the functioning of almost all organ systems in the human body. And chronic exposure to nicotine changes the functioning of these systems. So as an example, chronic exposure to nicotine decreases the flexibility of the blood vessels and changes how the heart responds to acute challenges like stress. The teen brain is not only sensitive to the addictive effects of nicotine but also to its toxic effects. In adolescent animals, nicotine is a very well-established neurotoxin, and it decreases learning, memory and attention processes and increases hyperactivity symptoms.

电子烟不仅会让人上瘾， 还会影响体内其他器官。 在电子烟内的尼古丁 会和一种叫烟碱型乙酰胆的 受体相结合， 这种受体对人体内大部分 器官系统的正常功能 有着重要作用。 而长期接触尼古丁 会改变这些系统的运作。 例如， 长期接触尼古丁会降低血管的弹性， 还会改变心脏对压力等 急性应激的反应能力。 青少年的大脑不仅对尼古丁 的成瘾作用很敏感， 对它的毒性作用也很敏感。 在青春期，尼古丁是一种 广为流传的神经毒素。 这会降低他们的学习能力， 记忆力和注意力， 还会增加患上多动症的几率。

09:57

Teens who use tobacco products are more likely to use marijuana and alcohol and also develop depression and anxiety as a teen or as an adult. So nicotine addiction through e-cigarettes could be leading them down the path of other addictions and other mental health problems. Now, in adolescent animals, nicotine also produces epigenetic changes, or heritable changes in gene expression, for example, in the genes involved in asthma. So teens who use nicotine may not only be harming themselves but they could be harming their future generations.

使用烟草产品的青少年更有可能 使用大麻和酒精， 在青少年或成人阶段 还会患上抑郁症和焦虑症。 电子烟导致的尼古丁上瘾 可能会导致他们误入其他瘾途， 并引发其他精神和健康问题。 在青春期，尼古丁还会导致基因表达 发生表观变化或遗传变化， 例如与哮喘有关的基因。 因此青少年吸食尼古丁 不仅损害自身健康， 还可能影响下一代人。

10:34

You know, the very existence of e-cigarettes could have led to an entire generation of nicotine-addicted youth. Easy access to these devices could have led to more experimentation with marijuana and many other vaporizable substances by youth. While there is no doubt that providing smokers with a cleaner form of nicotine is and should continue to be a critical goal, we still do not know if these devices help smokers quit smoking, and we know very little about the long-term effects of these devices. What we do know is that youth -- lots of youth -- are using these devices. In fact, the FDA commissioner recently used the term "epidemic" to describe e-cigarette use in the US. While trying to solve one huge public health problem, cigarette smoking, we may have created another colossal one. Our lack of vigilance in the earlier years around cigarette smoking led to a cigarette epidemic and many, many cigarette-related diseases. We do not want to repeat the same mistakes with e-cigarettes. So now is the time for action, for regulations that address the appeal and access of these devices to youth. Do smokers really need 15,000 kid-friendly flavors to quit smoking? Do they need so many different kinds of devices? Is it a good idea to have devices which are so easy to hide and so easy to use?

电子烟的存在 可能会导致整整一代人 都对尼古丁上瘾。 轻易就能使用的电子烟 会使越来越多年轻人 去尝试吸食大麻和其他 可雾化有害物质。 毫无疑问，为吸烟者们提供 更干净的尼古丁这种方式 是且肯定是一个历史性目标， 我们仍然不清楚电子烟是否 真的帮助吸烟者戒烟， 我们也对长期使用电子烟 的影响知之甚少。 但我们知道的是，大部分 年轻人都正在使用电子烟。 实际上，最近药监局专员使用了“流行病” 来描述美国境内的电子烟使用现象。 当我们尝试去解决例如吸烟 这个巨大的公共健康问题时， 可能引发出了另一个大问题。 近年来，由于缺乏对香烟危害的警惕 导致了吸烟行为的盛行， 和许多由吸烟引发的疾病。 我们不想再在电子烟上重复这些错误。 所以，现在是时候做出行动， 制定法规来解决电子烟对青少年 的吸引力和使用问题。 吸烟者们是否真的需要 15,000种口味的烟油来戒烟？ 他们真的需要如此多种类的设备吗？ 使用这种容易隐藏和使用的设备 真的是个好主意吗？

12:06

We recently heard that the FDA plans to introduce stricter regulations on sales of these devices that contain e-liquid flavors in retail locations like convenience stores and gas stations, and also introduce stricter regulations on sales of devices to minors over the internet. Is this going to be sufficient to change this rapid increase in youth uptake? We need to ask and answer such critical questions.

我们最近听闻药监局计划出台针对电子烟和烟油在便利店和汽油站 这样的零售场所售卖的严格规章制度， 同时也会出台更加严格的规章制度， 来约束电子烟对未成年人的网络销售。 这是否足以改变青少年 抽烟率快速增长的现状？ 我们需要询问和回答这些重要的问题。

12:34

Now is also the time for a serious public education campaign. Teens and their parents need to know that while e-cigarettes may contain less toxins than cigarettes, they're certainly not benign. Exposure of their bodies to the chemicals produced by these devices could be changing them in ways they may not like and setting them up for future unknown toxicities and health problems.

现在还应该开展严格的公共教育运动。青少年们和他们的父母都需要知道， 即便电子烟的毒性含量比香烟少时， 它们当然不是好东西。 身体长时间接触由电子烟 产生的化学物质 可能会对身体产生负面影响， 并导致在未来产生未知 的毒性和健康问题。

12:59

You know, when I said earlier that e-cigarettes were a perfect fit for the smartphone generation, I was not kidding. We live in a technology-crazed world, where the latest device and technology gets a lot of attention just because it is technology and because it is the latest thing. More and more over the next few years and for the rest of our lives, we are going to see technologies coming into the marketplace that may not raise any health flags at first, simply because they don't look unhealthy or they're not a medical device. For example, we could see devices that may make it easier to go longer without sleep or help us lose weight -- a personal goal of mine -- or achieve any number of other goals that we as consumers are very, very interested in. But many of these devices may come with unacceptable risks to our own health.

我之前所说的电子烟完美地符合 智能手机一代的需求， 并不是在开玩笑。 我们生活在高科技的世界， 最新的设备和科技都被高度关注， 仅仅因为它是高科技，它是最新的。 在若干年后，在我们剩下的人生里， 我们将越来越多的看到 大量科技进入市场， 这些科技一开始不会 引起任何健康问题， 只是因为它们看起来不那么不健康， 或者它们不是药用设备。 举个例子，我们会看到有一些设备 可以让人的睡眠时间变长， 或帮助人们减肥—— 这也是我的个人目标—— 或达成其他目标， 作为消费者的我们对这些 肯定很感兴趣。 但是大部分的设备会对健康 造成不可承受的风险。

13:52

So if we want to protect our health and the health of our children, perhaps we should get out of the habit of automatically celebrating such new technology and get into the habit of looking at them with a critical eye, perhaps even through a medical lens. Because, you know something? Our health, the health of our children and our future generations is far too valuable to let it go up in smoke -- or even in aerosol.

所以如果我们想保护我们 和我们孩子的健康，或许我们应该远离那些 不加思考地自动接纳新技术的坏习惯， 而是养成用批判的目光 去判断新技术的习惯。 甚至还可尝试用医学的角度。 因为你们都知道， 我们的健康，孩子的健康 还有子孙后代的健康都十分宝贵， 我们不能让它化为烟雾 —— 甚至让它化为气溶胶。

14:20

Thank you.

谢谢。

14:22

(Applause)

（掌声）