未登录,请登录后再发表信息
最新评论 (0)
播放视频

致命之物何其多1

This Much Will Kill You

人人都知道要远离有毒物质
We all know to stay away from poisons.
例如水银
Like mercury
摄取200毫克便会致人于死
where ingesting a 200 milligram dose would kill you.
又或者是钋 仅需1克的蒸发物
Or polonium which only requires 1 g of vaporized substance
即可抹杀5000万人性命
to wipe out 50 million people!
但是你知道70杯咖啡中
But did you know that 70 cups of coffee
所含的咖啡因足以让一个70公斤的人死亡吗?
contains enough caffeine to kill a 70 kg person?
这些数量的咖啡因能够
This amount of caffeine can
诱发心悸甚至心脏骤停
trigger heart palpitations or even cardiac arrest.
平日喜欢喝酒?
Prefer alcohol as your beverage of choice?
连续饮用13小杯烈酒也会致命的
13 consecutive shots could be lethal too.
因为酒精有镇静作用
Because alcohol is a depressant,
大脑内部控制基本生命功能的区域
the area in the brain controlling basic life functions
比如呼吸 心跳 会开始罢工
like breathing and heart rate begin to shut down.
一般而言 摄入过多液体也很危险
Too much liquid in general can be dangerous as well.
尽管这需要很大的摄入量
Though it takes a lot,
大约6升水还是会导致水中毒
water intoxication from around 6 liters
从而引发脑部水肿
causes brain cells to swell,
随后便会产生头痛 癫痫 昏迷
leading to headaches, seizures, comas
甚至还会导致死亡
and even death in extreme cases.
但是如果你不喝水或者吃过多盐
but if you stop drinking water or consume too much salt,
你的细胞便会开始收缩
your cells will start to shrink
继而引发一种“高钠血” 的症状
leading to the condition known as hypernatremia.
一次食用48茶匙你最爱的调味品
48 teaspoons of your favourite seasoning at once
足以引发这种反应
is enough to trigger this reaction,
同样也会引发癫痫 昏迷甚至死亡
also leading to seizures, coma or even death.
把头扎进水里
Stick your head underwater
或者只是憋气
or simply hold your breath
缺氧状态下仅需大约4分钟
and it takes around 4 minutes without oxygen
便会造成严重大脑损伤
to cause severe brain injury
到6分钟 便会一命呜呼
and at 6 minutes, you could die.
但极限情况除外
However, in extreme cases,
一些自由潜水员能够做到
some freedivers have been able to
屏住呼吸超过20分钟
hold their breath for over 20 minutes.
樱桃也能让你缺氧
Cherries can also deprive you of oxygen.
开什么国际玩笑?
Say what?
如果你不小心吞了个樱桃核
If you ever swallow a cherry pit,
不用怎么担心
you shouldn’t worry too much,
别咬开就好了
just don’t bite into one.
一两个樱桃核内含的氰化物足以使你中毒
1 or 2 ground cherry pits contains enough cyanide to take you down.
这些氰离子会抑制细胞色素氧化酶
And these cyanide ions inhibite the enzyme cytochrome coxidaze,
从而导致你的细胞无法吸收氧气
causing your cells to be unable to use oxygen.
说到氧气不足
Speaking of a lack of oxygen,
在海平面上约8000英尺处
it’s at around 8000 feet above sea level
我们的身体开始不适应少氧的环境
that our bodies can no longer acclamatize to delemited oxigen
这就是登山届的“死亡地带”
this is known as the “death zone” in mountaineering
长得太高也会让你死掉
Simply being too tall can also kill you.
在20世纪30年代
In the 1930s,
罗伯特·潘兴·瓦德罗的身高达到了8英尺11英寸
Robert Pershing Wadlow reached 8’11”.
这样的高度给他的循环系统带来了很大的压力
This height put severe stress on his circulatory system
还给他的骨骼结构带来压力
and structural pressure on his bones,
他22岁便早逝了
and he died at the young age of 22.
研究人员假设认为
Researchers have hypothesised that
身高5英尺以上每增加1英寸就会减少1.3年的寿命
Every inch above 5 feet takes 1.3 years off your life.
如果你担心你宠物的性命
If you worry about your pet’s life,
你应该听过不能让它们吃巧克力的说法
you may have heard not to give them chocolate.
可可碱这种化学制品同样也能让我们万劫不复
The same chemical Theobromine can kill us too.
但是人类的身体可以较为有效地代谢可可碱
Our bodies metabolise Theobromine more effectively though
体重每公斤摄入1000毫克才会致命
with 1000mg/kg being lethal to humans
这等同于一次吃下85块全尺寸的巧克力棒
which is the equivalent of 85 full sized chocolate bars at once.
你可能只有在吸嗨后才想吃那么多巧克力吧
You may want that many chocolate bars after getting high
但是 你要吃22公斤的大麻
howerver, you will need to eat twenty-two kilograms of marijuana
才会有死亡风险
to be a risk of death.
吸食的话 致死量更是高到笑死人
Smoke it, and the amount required to overdose is comically high.
需要在15分钟内吸食约680公斤的大麻
Approximately 680kg of pot within15 minutes
才会引起致命反应
would induce a lethal response
这也许可以解释为什么从来没有一个有记录的
which may explain why there has never been a single documented death
直接因过量吸食大麻而引起的死亡
directly linked to consuming too much marijuana.
听一些劲爆歌曲或许也十分有趣
Blasting some amazing music may be fun as well,
但别超过185分贝
just don’t go above 185 decibles.
否则所产生的气压会炸烂你的肺
The amount of air pressure from this could burst your lungs,
或者 产生一个可以跑到心脏的血管栓塞
or alternatively, create an embolism that travels to your heart.
当然这也会把你的邻居吵到整晚无眠
It may also keep your neighbours up all night
在没有睡眠的情况下身体能存活多久依然成迷
And, while it’s uncertain how long the body can survive without sleep,
于是多项针对老鼠的研究开展起来
studies on rats who underwent continuous sleep deprivation
大约两周时间 被连续剥夺睡眠的老鼠就宣告死亡
lasted around 2 weeks before dying.
人类的世界纪录保持者也才刚刚超过11天
The world record in humans is just over 11 days,
出人意料的是 在他补回睡眠后
but surprisingly no long term effects were documented
并未有任何持久影响记录在案
after he caught up on his sleep.
你有问题亟待解决么?
Got a burning question you want answered?
在评论区里或在脸书 推特上提问
Ask it in the comments or on Facebook and Twitter.
如果你喜欢这个视频的话
And if you liked this video,
看看我们的上一个视频“这是200卡路里”
check out our previous one called “This is 200 calories”
在视频中 我们分析对比了各种不同的食物和饮料
where we break down and compare different foods and drinks
以便客观地看待事情
to put things in perspective.
如果你对我们每周更新的科学视频感兴趣的话
Be sure to like, share and subscribe
记得点赞、分享、订阅噢
for more weekly science videos.

发表评论

译制信息
视频概述

生命诚可贵,但日常生活中还是有很多危险致命的东西。

听录译者

收集自网络

翻译译者

路易威尔

审核员

审核员 AF

视频来源

https://www.youtube.com/watch?v=vPszR0-vTqc

相关推荐