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江门哪里有治早泄江门市第三人民医院泌尿系统在线咨询江门市妇幼保健人民中医院治疗性功能障碍多少钱 栏目简介:A show that combines drumming, dancing and meditation will open at Culture Square next week. The director hopes the show will help spectators explore the issues of time and spirituality. Cui Huiao tells us more.201702/491707Being a teenager is hard. And so is living with one, Im told.我被告知 作为一个青少年不容易 和青春期的人在一起生活也不容易No human gets to escape this moody, angsty, confusing phase没有人能逃避开这段情绪化的 焦虑的 迷茫的时期And interestingly, such an extended adolescence is unique to humans.有趣的是 这样一段延长的青春期是人类独有的Other animals grow up a lot faster than we do.其他的动物成长速度比我们快得多And you may think our teen years are just about streamlining bodies for baby making,你也许认为我们的青少年期只是在长身体以繁衍后代but as it turns out, the storm of sex hormones that we associate with the teenage years,但事实明 青春期时性荷尔蒙的大爆发are only a small part of whats really going on in the teenage body.只占那时身体变化的一小部分Most of the action, it turns out, is happening in the brain.大部分的变化 发生在大脑Until fairly recently, we thought that the brain finished the nuts and bolts of its development,直到最近 我们还认为大脑已基本发育完全by the time we started kindergarten. But really,在我们开始上幼儿园的时候 但事实上when puberty starts, it undergoes massive remodeling.当进入青春期 大脑会开始大规模地重塑This amounts to several years of neural growing pains, as well as the这意味着长达数年的神经成长的烦恼other more visible growth thats going on all over your body. So take heart!以及其它你身体上下更易见的成长变化 所以振作起来!Whether youre going through it now, or about to go through it,不管你是正在经历青春期 还是正要经历or count yourself among the veterans of that turbulent decade,或是认为自己在那混乱的十年里已是个老手know that the result of the teen years is a stronger, faster, more sophisticated brain.你要知道最后你将有一个更强壮 更快速 更精密的大脑If there were someone that told me twenty years ago...如果二十年前有人这样告诉我就好了……Lets start with that obvious scapegoat of adolescent anguish, hormones.让我们从看上去是导致青春期烦恼的罪魁祸首 但其实是“替罪羊”的 荷尔蒙 说起That word itself, is kind of a lazy shorthand that people use这个单词本身 即是一种偷懒的简易表达to describe the chemicals that some glands secrete, that can affect our behavior.是人们用来描述从一些腺体分泌的 可以影响我们行为的化学物质But the fact is, hormones have all kinds of jobs that have nothing to do with where you grow hair,但事实是 荷尔蒙有诸多作用 但不能决定你在哪里长毛发or what turns you on, or whether you feel glum for no apparent reason不能使你“性奋” 也不会让你不明原因地觉得沮丧Hormones keep your heart beating, and your body hydrated, and they make your organs grow,荷尔蒙使你的心脏保持跳动 保持身体水分 使器官生长and make you grow bone, and muscle, and skin!使你生出骨头 肌肉与皮肤What people actually mean when they talk about teenage hormones, are sex hormones.当人们谈论“青春期荷尔蒙”时 他们实际上指的是性荷尔蒙And yes, puberty involves a whole series of sex hormones storms,是的 青春期包含一整个系列的性荷尔蒙爆发the first of which actually kicks in before youre outta Primary School.最早的性荷尔蒙分泌实际上在你小学毕业前就已开始Thats when the Adrenal glands start secreting androgens, which triggers the growth那时肾上腺开始分泌雄激素 从而引起in activity of the skins sebaceous glands, making skin more oily.皮脂腺的生长加速 使皮肤变得油腻Soon enough, more apocrine or sweat glands get activated increasing body odor.很快 更多的分泌腺或汗腺活跃使得身体气味增加Then comes the waves of hormonal agents that start activating the gonads.然后大量的荷尔蒙开始促进生殖器官的发育For boys, this influx of luteinizing hormones from the pituitary gland, get testosterone from the testes,对于男孩 从脑垂体大量涌入的促黄体生成素 促进睾丸大量分泌睾丸素and suddenly, that guy has up to fifty times more testosterone than he did before puberty.一下子 那家伙获得了比青春期前多50倍的睾丸素This also changes the shape of the male body, promoting hair growth, and building up lean muscle mass,这也改变了雄性的身体 促进毛发生长 塑造肌肉线条just as the increased presence of estrogen in girls rearranges the deposition of their fats,就像女孩们体内增加的雌激素 保持身体水分 使器官生长stimulating the growth of breasts. Humans are actually lucky to experience the craziness of puberty only once,促进胸部的增长 人类很幸运 只用经历一次青春期的疯狂many other animals undergo multiple similarly intense hormonal rodeos as they enter sexually active periods,很多动物在进入发情期时 要经历数次类似的紧张的荷尔蒙起伏变化sometimes called the rot or heat, every new breeding season.有时可称为“堕落或疯狂”Some male species completely stop eating during their breeding period, because theyre just that sex crazed.在繁殖期一些雄性品种会完全停止进食 它们只是为性疯狂And yet all that said, teens are far less ruled in their hormones than you might think.然而说了那么多 荷尔蒙对青少年的控制并没有你想的那么大There are other factors that play here.还有其它的因素在影响For example, your favorite moody teen may be by turns punchy, angry, depressed, or in a zombie like fog,比如 你那处于青春期的情绪化的宝贝 也许变得寡言 愤怒 沮丧 或像僵尸一样无神because of their chronic lack of sleep.只是因为长期的缺少睡眠Sleep is vital to everyone, but its specially important for kids and teens, because its during sleep睡眠对每个人都很重要 对小孩和青少年尤其重要 因为在睡眠中that your pituitary gland releases an essential growth hormone, necessary for development.脑垂体会释放一种重要的生长激素 这对于成长很重要A normal sleep cycle driven by circadian rhythm, is regulated by the daytime release of cortisol,一个遵循24小时节律的正常的睡眠循环 由人体白天释放的皮质醇which helps you wake up, and melatonin, which helps you wind down when it gets dark.使人保持清醒 和晚上释放的调节 褪黑激素使人保持平静But this biology of sleep timing changes as we age and as puberty begins, teens sleep clocks get pushed back.但是这个生物钟会随年龄增长和青春期的开始而变化 睡点会推后Most adults start producing melatonin 10 p.m. ish, but one study showed that teenagers大多数的成年人晚上10点开始分泌褪黑激素 但一项研究显示青少年dont start producing melatonin until closer to 1am! This may be because pubertys hormonal frenzy直到凌晨1点才开始分泌褪黑激素!这也许是因为青少年疯狂的荷尔蒙is stalling the release of melatonin, and could partly explain why so many teens stay up late,推迟了褪黑激素的释放 这也可以一定程度上解释为什么那么多的青少年熬夜energized by the night, but had a really hard time rolling outta bed with the alarm.晚上精力旺盛 闹钟响了却起不来床Of course its a bit of a chicken and egg deal, since watching reruns of The Simpsons,当然这有点像先有鸡还是先有蛋的问题了 因为看《辛普森一家》的重播and playing Call o Duty late at night continues to stimulate the brain,或者玩《使命召唤》到很晚 这些都在刺激大脑which may further delay the release of melatonin. Still, some researchers are starting to advocate也许会更一步推迟褪黑激素的释放 所以 有些研究者开始提倡for pushing back high school start times in the morning, in the hopes of having more focused students.将高校的早晨开始上课时间往后调 希望这样有更多集中精力的学生So weve got sex hormones changing the bodies, and a lack o sleep to contend with,那么我们知道了性荷尔蒙会改变身体 以及缺少睡眠对人的影响but increasing evidences suggest that, there is something much bigger at work但是越来越多的据表明 有些事有更大的影响thats making teenagers so teenager-ry. Their brains!使得青少年如此的与众不同 即他们的大脑!It turns out that brains actually take longer than we thought, to fully mature.事实表明 大脑确实需要比我们想象的更长的时间来发育成熟I dont mean physical size - our brains are aly about 95% full-sized by the time were just six -我不是指物理大小—在我们只有6岁时 我们的大脑就已经有成年人95%大小了but more in the sense of the connections inside the brain.我指的是大脑内部的神经连接Adults - for the most part - know how to make decisions by evaluating choices, and weighting consequences.大部分成年人知道如何 通过对比选择 权衡结果做决定They do this with their prefrontal cortex,通过他们的前叶额皮质层which is responsible for controlling impulses and emotions, and forming judgments.这负责控制冲动和情绪 以及形成决定Its neurons chat with the neurons in other regions of the brain,它的神经元与大脑其它的区域的神经元进行交流 responsible for - say it - memory or movement, through synapses.比如说 负责记忆和行动的神经元 这种交流通过突触进行The thing is, teenage brains dont quite work like this yet. The prefrontal cortex may not be fully developed真实情况是 青少年的大脑还没有像这样运作 他们的前叶额皮质层也许无法发育完全until youre mid-twenties, and teen synapses - those ;lines; of communication - are still growing,直到25岁左右 青少年的突触(即脑内神经的交流线路)还在成长中and specializing. Theyre also - slow.细化中 它们同时也 非常缓慢As an adolescent brain keeps developing, its axons - the long ;tail-like; parts of the neurons在一个青少年的大脑成长过程中that transmits signals to other neurons - become more and more insulated轴突 变得越来越不易受影响by a fatty layer called the Myelin Sheath. This padding greatly increases the cells transmission speed,因为被一层厚的称为髓鞘保护膜所包裹 这层包裹大大提升了细胞的传输速度and while it helps adults make faster decisions, it isnt fully formed in teens.这使得成年人做决定时更迅速 却在青少年时期无法完全发育完成These changes occur slowly, beginning at the back o the brain, where the oldest and most fundamental这些变化发生得十分缓慢 开始于大脑的后部 即大脑最古老和最基础的部分brain parts reside, and slowly working its way forward to the more advanced and complicated brain bits.然后逐渐地往更先进和复杂的部分发展The prefrontal cortex is the last to be hooked up and shaped.前叶额皮质层是最后被连接和塑造的So its important to keep in mind, that just because your favorite teenager stayed up until sunrise因此这很重要你要记住 你的宝贝在考试的前一天晚上binge-watching The Walking Dead the night before an exam, it doesnt mean theyre dumb or lazy,无节制地看《行尸走肉》直到天亮 并不意味着他们又蠢又懒their brain are just literally finishing being built.只是因为他们的大脑还在塑造中But at the same time, because all o this brain buildings just starting to peak,同时 因为他们的大脑塑造开始达到顶点this is also, when the brain starts getting thinned out.这也是大脑开始清理多余连接的时候You actually start losing connections that you dont use enough, in a process called synaptic pruning -那些你用得不频繁的连接会消失 这一进程称为突触修剪which has led to a theory that this is kind of a use it or lose it phase.由此引出一种“用进废退”的理论Meaning, adolescence could be an specially important time to use your brain -这意味着 青少年时期对大脑的使用特别重要play an instrument; engage in sports; write poetry; learn language!演奏一种乐器 参加一项体育活动 写诗 学习新语言Because by doing these things, youre helping hardwire those synapses, and giving your brain topiary通过做这些事 这些突触连接会巩固 你的大脑会被修剪成a lovely lasting shape. Whereas if youre sitting around all day playing Candy Crush,一个可爱又持久的形状 而如果你整天都坐着玩《糖果粉碎传奇》those will be the connections that survive, which you dont need...这些有关的连接就会留存下来 尽管你并不需要……This shaping of the teen brain manifests itself in other ways too, like in teenage attitudes.这种对青少年大脑形状的塑造也通过其它方式表达出来 比如他们对外界的看法A group of scientist at the McLean Hospital of Massachusetts, once hooked up a group of adults美国马萨诸塞州麦克莱恩医院的一队科学家 通过核磁共振设备进行观察 曾组织一组成年人and a group of teens, to MRI devices and then asked them to identify a series of expressions和一组青少年 让他们鉴别照片上的成年人脸上的系列表情on photographs of adults faces. Interestingly, while adults correctly identified one expression as fear,有趣的是 当成年人正确地指出一个表情是害怕时the teenagers thought the faces showed anger, surprise, or shock. They werent registering subtleties well.青少年认为那是表示害怕 惊讶 或震惊 他们无法识别这些微妙的差异Not only that, but the MRI images showed that adults and teens responded with different parts of their brains.不仅如此 核磁共振图像显示成年人和青少年是用大脑的不同的部分回应的Adults, use the reasonable prefrontal cortex, while the teens mostly use the gut reaction, emotional amigdala,成年人理所当然地使用前叶额皮质层 而青少年主要使用直觉反应 即主管情绪的杏仁体located farther back in the brain.杏仁体位于大脑的更后面Results like these might help explain why teenagers seem to experience frequent mood swings.这样的试验结果也许可以帮助解释为什么青少年们看起来更易情绪波动For one, they tend to react quickly from the emotional part of their brain,首先 他们倾向于从大脑的情绪部分快速反应without running those reactions by the more rational frontal cortex,而不是用更理智的前叶额皮质层and two, it could be that theyre just mising expressions, and therefore the intentions behind them.其次 有可能他们只是误解了试验的表情 及其后的意图The frontal cortex also helps people relate to, and understand each other,前叶额皮质层也可以帮助人们建立联系 理解彼此and you can imagine what happens when concern is misjudged as anger; or worry, as disappointment.所以你可以想象当关心被误解为生气 或担心被误解为 失望时会发生什么The Fresh Prince has an entire song about it.Fresh Prince就有一整首歌是关于这个的But the truth is, as much as parents just dont understand, teens dont always understand either.但事实是 父母常常无法理解他们的小孩 青少年自己也常常无法理解When the emotional amigdala, and the more rational cortex arent fully hooked up yet,当负责情绪的杏仁体与更理智的前叶额皮质层 还没有完全连结好that can make it hard for teenagers to productively work through emotions.青少年们就很难控制好情绪This kind of reactionary, impulsive behavior may also lead to more risk taking.这种叛逆和冲动行为也许会导致更危险的行为Adolescence is the time when were most likely to experiment with whatever booze, or drugs is available,青少年时期我们最容易体验酒精或毒品and unfortunately, its also the time our developing brains are most vulnerable to lasting effects不幸的是 那也是我们塑造中的大脑最脆弱 会受到永久影响的时期Studies have shown that teens are more likely to become addicted to drugs and alcohol, than adults研究已经表明 青少年比成年人更容易沉迷于毒品或酒精partly because their brains are more attuned to their reward centers.一部分原因是他们的大脑对脑内的奖赏区域更熟悉While the teenage prefrontal cortex is still developing, their Nucleus Accumbens,因为他们的前叶额皮质层还在发育中 他们的“伏隔核”or pleasure and reward zone, forms early on.或“愉悦和奖赏区域”成型更早Neuroimaging studies have shown that when presented with a big potential reward,神经影像研究表明当有大的潜在的奖赏时teen brains light up way more than kids or adults brains, but if the reward was small, teen brains hardly fired at all.青少年的大脑亮起来的区域比小孩或成年人更多 但当奖赏很小时 他们的大脑几乎没有反应So basically, give an adolescent a pat on the back, and youll get a shrug.所以基本上 在一个青少年背后轻拍一下 他只会耸耸肩Give them a hot date or a wining goal, and their brains light up like Vegas.给他们一个火辣的约会或一个令人振奋的目标 他们的大脑会闪亮得像This of course, does not always result in great judgment.基于这样的反应 你不能指望他们能做出多伟大的决定A jacked up thrill-seeking impulse, combined with exquisite pang of peer pressure,一股上涌的寻找刺激的冲动 加上同伴的压力带来的痛苦plus a new drivers license, new sex parts, and access to substances can lead to some not good results.和一个新的驾照 新的性伴侣 再加上毒品 这些足够导致一些不好的结果But still, this long and some times tedious remodeling process that our bodies go through in the teenage years,但是话说回来 我们青春期的身体经历的这个长长的 有时候有些乏味的重塑过程isnt all bad. Many scientists have pointed out that our delayed adolescence并不全是坏事 许多科学家指出 较长的青春期lets our brains keep their flexibility longer, which使得我们的大脑保持灵活更长的时间Yeah, may make teens a little slow, but also more adaptable, as they prepare for the adult world.也许会使青少年长得有点慢 但更能适应随后到来的成人世界In this way, you can see teen impulsiveness as boldness; or independent thinking, and moodiness,从这个意义上说 你可以将青春期的冲动当成大胆 或 独立思考as a source of new found empathy; and excitability, as passion.将感性当作共鸣 兴奋过度当作热情Which means, theres a lot of awesome energy floating around out there y to decrease all kinds of world suck就是说 这些精力旺盛的青春期的人们在 准备改变这个世界的旧有成见Thanks for watching the SciShow, and thanks specially to all of our subscribers on Subbable,感谢观看SciShow 特别要谢谢我们在Subbale上的所有贡献者who make this channel possible!有他们才有这个频道!You can be an honorary associate producer of SciShow, or even pick the topic of a future episode!你也可以成为SciShow的一名荣誉制作者 甚至决定未来某一系列的主题To find out how, go to ;subbable.com/scishow;具体方式 请至subbale.com/scishowAnd you can always find us on Facebook and Twitter, and in the comments below,你也可以在Facebook和Twitter 及其下的部分找到我们and if you wanna keep gettin smarter with us here at SciShow,如果你想和我们一起变得更聪明you can go to ;youtube.com/scishow; and subscribe.欢迎至youtube.com/scishow订阅我们的节目201707/516892江门福康医院割包皮可以用医保卡吗

江门福康医院看不孕不育医生This may look like just another Silicon Valley company, with people coding at their desk.这家公司看起来可能和硅谷的其他公司毫无两样,员工们坐在桌前编写代码。But Capella Space has a unique customer: the U.S. military.但Capella Space公司有一个独特的顾客:美国军队。;We like to work with the government because we think we can help the government save money,“我们很愿意和政府合作,因为我们认为,我们能帮助政府节省费用,bring a capability that doesnt exist, and through that hopefully save some lives.;开发一种不存在的功能,进而希望通过这些拯救一些生命。”An immigrant from Iran, Payam Banazadeh now builds a special kind of satellite that is a bit bigger than a shoebox.帕亚姆是一位来自伊朗的移民,他正在建造一种只比鞋盒稍大一点的特殊的卫星。;In fact, this is a military type technology.“实际上,这是一种军用技术。The problem is the satellites that the military uses are massive.;军队目前所使用的卫星的问题就是它们太大了。”Capella can build satellites smaller, cheaper and faster than traditional military satellites.Capella可以制作出比传统的军用卫星更小、更便宜、更快的卫星。Now the US military can be a customer of Capella Satellite data quickly through a new Defense Department group,目前,通过一个叫做国防创新试验单元(DIUx)的新的国防部机构,called Defense Innovation Experimental, or DIUx.美国军队可以很快地成为Capella卫星数据的一个客户。;So the Department of Defense is the worlds largest bureaucracy.“因为国防部是世界上最大的政府机构,There are some things that are of a secret nature and must be protected.所以有一些带有秘密性质的东西必须被保护起来。And of course, everything that our soldiers touch could have life or death implications.;当然,军人们接触的所有东西都可能生死攸关。”As a result, the military tends to be risk averse, and in many cases, will only adopt technology when it is perfect.结果是,军队倾向于规避风险,并且在许多情况下,他们只采用完美的技术。But by then, the technology maybe outdated.但到那时,这项技术可能就已过时了。The tech startup culture is the opposite, where risk and speed drive innovation.新兴科技公司却与之相反,他们靠风险和速度推动创新。;You know, have this minimal viable product that you launch really quickly into the market“你知道,将这种最低可行性产品迅速发布到市场上,and learn about it and iterate and try to do this as quickly as possible.;从中学习,然后再重复发布新版本,并尽可能做到最快。”At the Milken Institute Global Conference recently,最近,在梅肯学院举行的全球会议上,Silicon Valley experts emphasized the importance of keeping up with technology.硅谷的专家们强调了跟上科技步伐的重要性。;As a broad statement, government systems are not using the latest forms of operating systems, encryptions and mechanisms.;“泛泛来说,政府系统所使用的操作系统、加密技术和机制都不是最新的。”As the most recent global cyber attack proves, it is a constant race to stay ahead of threats.最近的全球网络攻击事件表明,想要预知风险就应不断地全速前进。Housed in this building in the middle of Silicon Valley,位于硅谷中间的这栋建筑中,DIUx is a bridge that brings together the different cultures of Silicon Valley startups and the U.S. military to meet national security needs.DIUx是一座桥梁,将硅谷中不同文化的新兴公司与美国军队联系起来,以满足国家安全的各种需求。;Technology is always changing and if you have only legacy equipment,“科技不断在变,如果你只有遗留设备,that actually gives the bad guys more time to figure out what the vulnerabilities are.这实际上给坏人留下更多时间去研究漏洞是什么。If were constantly evolving, right, its a cat and mouse game between attackers and defenders and we want to be on the winning side of that.;如果我们不断进化,是吧,攻击者和防卫者之间就是猫鼠游戏,而我们想获胜。”That starts with DIUx doing away with much of the paperwork and bureaucracy traditionally involved with having the military as a customer.DIUx开始废除过多的文书工作以及官僚制度是在有了军队这一客户之后。Since its inception 18 months ago, DIUx has worked with more than 30 tech companies across the U.S. and the world.成立18个月以来,DIUx已与美国及世界上30多家科技公司进行过合作。Capella Space plans to launch its satellite in about six months.Capella Space计划在未来六个月之内发射自己的卫星。Elizabeth Lee, VOA news, Mountain View, California.VOA新闻,伊丽莎白·李于加利福尼亚,山景城为您报道。201706/513610台山市妇幼保健院男科割包皮手术价格 栏目简介:;Shanghai Live; focuses on big events in the city and major issues around the world, and presents them in a practical and audience-friendly manner to meet the ever-evolving needs of Shanghais English-speaking viewers,both local and expatriate.《直播上海英语电台》集中报道城市大事件以及全球热点话题,并以观众喜闻乐见的方式呈现给大家,从而满足上海本地以及上海海外人士的英语需求。201607/454416江门省妇幼保健院治疗男性不育多少钱

江门人民医院割包皮费用是多少Below me is the province of British Columbia,我正在不列颠哥伦比亚省上空which is twice the size of California.这里的面积相当于加利福尼亚的两倍It is so isolated that there are more bears here than there are people.这里与世隔绝 当地熊的数量远大于人口数Survival is all about physical and mental strength.生存需要强健的体魄与心理素质With basic skills and the right attitude,you can survive in the wilderness.只要有基本的技巧和良好的心态 你在野外就能存活下来My first recruit is 39-year-old Joe Resto, from New York.第一位新成员是 来自纽约的乔·莱斯特 今年39岁 I always wanted to climb to the top of a mountain.我一直很想征一座高山I will probably be the only Puerto Rican in history to climb a mountain.我可能会成为波多黎各 登山史上的第一人But its comforting to know that Ill have Bear得知贝尔将会在我身边not too far from me to take care of things if things get out of hand.在危急关头伸出援手 我感到很欣慰And joining Joe is 29-year-old Sean Lacoste, from the midwest.和乔一起的是 来自中西部的肖恩·拉科斯特 今年29岁This is something that I signed up for,and I want it to be a challenge.我报名参加这个节目 是想挑战自我I want to be able to face my fears and my weaknesses and overcome those.我希望能够直面并征 我的恐惧感和弱点Sean and Joe wont be disappointed.一切将如他们所愿But the wilderness is both dangerous and unpredictable.但是荒野既危机四伏又变幻莫测Okay, are you set for this?你们准备好了吗Get y for the most wild cab ride youre ever gonna take.Keep low.准备踏上最狂野的荒野之旅 蹲下点儿This heli is taking us high into the Purcell mountain range,over 100 miles from the nearest city.直升机将把我们 带到珀塞尔山脉之中 距离最近的城市也有100英里之远Welcome to the big mountains.欢迎来到雪山201705/509249 "江门治疗非淋医院



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