BBC纪录片《大麻 罪恶之种》 第17期：弃大麻重建生活
The problem is, anyone using cannabis won't know whether they are vulnerable until it's too late.
问题是，使用大麻的人不会知道它是否有害，直到无法挽回。
Now Paul is trying to rebuild his life.
现在保罗正试着重建生活。
We're immensely proud of him.
我们为他感到无比的骄傲。
The way he's got through things, he's back at college...
对他处理问题的能力，还有他再回到大学...
We're really, really proud of him, he's coped amazingly well with it all.
我们真的非常，非常骄傲，他处理得很好。
I'm hoping to learn to drive and possibly go to uni and study further.
我希望能学会开车，还有到大学继续深造。
And I'd like to go to Africa and build a school and things like that.
我还想到非洲，建个学校和教书。
Despite stopping smoking cannabis and starting medication, the voices in Paul's head have not left him entirely.
尽管停止了使用大麻并接受药物的治疗，保罗脑中的声音并未完全地离开他。
Now I hear the voice of a girl I used to know.
现在我听到曾经认识的一个女孩的声音
I didn't know her very well, but for some reason she stuck in my head.
我和她并不是很熟，但因为某些原因老是忘不了她。
I hear her voice most of the day, and before I go to sleep is the worst time.
我经常听到她的声音，尤其是我要睡觉的时候。
Sometimes she's told me to commit suicide and things, but I tend to just ignore that.
有时她叫我去自杀或什么的，但我没有理她。
The thought that he will always be hearing that is really difficult to contemplate,
一想到以后保罗会一直听到那些声音，我就很难接受。
because I can hardly imagine what that must be like.
因为我甚至不敢想象是怎么样的。
Paul's story shows what long-term effects cannabis might have on the human brain.
保罗的故事告诉我们，长期使用大麻可能对大脑产生影响。
Now, research into the short-term effects of using cannabis suggests that there may be a link with schizophrenia here too.
现在相关研究显示，短期使用大麻也有可能导致精神分裂。
The first studies of the immediate effects of THC on the human brain are now being made by Dr. Zerrin Atakan.
对THC对人脑的即时影响的研究，是由洁琳· 阿塔康博士开始的。
I really want to see how cannabis does its effect, especially in the brain.
我很想知道大麻是怎样产生影响的，尤其是对大脑。
And because this is the most widely used drug in the world, and we still know not too much about it, especially how it works in the brain.
由于它是世界上最广泛使用的药物，而且我们对它知之甚少。尤其是它对大脑的影响方面。
Zerrin was particularly interested in how THC can affect the brain's internal control over your behaviour and inner thoughts.
洁琳尤其感兴趣的，是THC如何影响大脑，从而控制行为和思想。
As you know, when people smoke cannabis, sometimes they can have, some of them, have difficulty in controlling their behaviour.
你知道，当人们吸食大麻时，有时一部分人会难以控制他们的行为。
And that's why we chose a task that could measure this.
所以我们选了一个实验来测量这种影响。
And the task is called response inhibition, or how you stop yourself from doing something, or how you put the brakes on.
这个实验叫做反应抑制，简单地说就是你如何阻止自己的行为，或者如何停下来。
