What is bipolar disorder? - Helen M. Farrell

13,624,370 views ・ 2017-02-09

TED-Ed


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翻译人员: Di SUN 校对人员: Jiawei Ni
00:06
What is bipolar disorder?
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什么是双向情感障碍? (躁郁症,bipolar disorder)
00:08
The word bipolar means two extremes.
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“bipolar”这个单词意思是两个极端。
00:12
For the many millions experiencing bipolar disorder around the world,
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对于世界上数百万躁郁症患者来说,
00:16
life is split between two different realities -
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生活被分裂成 两个截然不同的部分,
00:20
elation and depression.
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兴高采烈的愉快期 和郁郁寡欢的抑郁期。
00:22
Although there are many variations of bipolar disorder,
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躁郁症有多种类型。
00:25
let's consider a couple.
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我们来看其中两种。
00:27
Type 1 has extreme highs alongside the lows,
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第一种包含极端的情绪高潮 伴随情绪低谷,
00:31
while Type 2 involves briefer, less extreme periods of elation
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第二种包含更温和的情绪高潮,
00:36
interspersed with long periods of depression.
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穿插在长期的抑郁期中。
00:39
For someone seesawing between emotional states,
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情感起伏很大的人
00:42
it can feel impossible to find the balance necessary to lead a healthy life.
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会觉得找到健康生活的平衡点 是不可能的。
00:48
Type 1's extreme highs are known as manic episodes,
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第一种类型中的精神愉快期, 被称为躁狂发作,
00:52
and they can make a person range from feeling irritable to invincible.
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患者可能感到狂躁易怒, 或是觉得自己无所不能。
00:56
But these euphoric episodes exceed ordinary feelings of joy,
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但这种精神愉快 超过一般的喜悦感,
01:01
causing troubling symptoms like racing thoughts,
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会引发其他症状, 比如思绪翻腾,
01:03
sleeplessness,
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失眠,
01:05
rapid speech,
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言语急促,
01:06
impuslive actions,
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做出冲动行为
01:07
and risky behaviors.
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以及危险行为。
01:10
Without treatment, these episodes become more frequent,
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若未接受治疗,异常的精神愉快期 会更频繁出现,
01:12
intense,
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程度加重,
01:13
and take longer to subside.
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同时需要花更久的时间平息。
01:16
The depressed phase of bipolar disorder manifests in many ways -
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躁郁症的精神沮丧期 有以下表现形式:
01:20
a low mood,
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情绪低落,
01:21
dwindling interest in hobbies,
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兴趣减弱,
01:23
changes in appetite,
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食欲不正,
01:25
feeling worthless or excessively guilty,
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感到自己没有价值 或者极端内疚,
01:27
sleeping either too much or too little,
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睡太多或者太少,
01:30
restlessness or slowness,
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精力充沛或者行动缓慢,
01:32
or persistent thoughts of suicide.
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或者常有自杀的想法。
01:35
Worldwide, about one to three percent of adults
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全世界大约1-3%的成年人
01:38
experience the broad range of symptoms that indicate bipolar disorder.
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表现出躁郁症的不同症状。
01:43
Most of those people are functional, contributing members of society,
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其中大多数是对社会有贡献的人,
01:46
and their lives, choices, and relationships
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他们的生活,选择以及人际关系
01:49
aren't defined by the disorder,
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并不受躁郁症限制。
01:52
but still, for many, the consequences are serious.
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即便如此,对于很多人来说, 躁郁症带来了严重的后果。
01:55
The illness can undermine educational and professional performance,
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躁郁症会影响人们 在学习和工作上的表现,
01:59
relationships,
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人际关系,
02:00
financial security,
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财务稳定,
02:01
and personal safety.
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以及个人安全。
02:05
So what causes bipolar disorder?
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那么,是什么原因引起了躁郁症?
02:08
Researchers think a key player is the brain's intricate wiring.
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研究人员认为, 复杂的大脑回路是主因。
02:12
Healthy brains maintain strong connections between neurons
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健康的大脑中 神经元之间强有力地连接在一起,
02:15
thanks to the brain's continuous efforts to prune itself
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多亏了大脑不断修剪清除
02:19
and remove unused or faulty neural connections.
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无用的或错误的神经连接。
02:24
This process is important because our neural pathways serve as a map
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这一过程之所以很重要 是因为神经通路的作用
02:28
for everything we do.
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就像是地图一样指引我们。
02:31
Using functional magnetic resonance imaging,
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通过机能性磁共振成像,
02:33
scientists have discovered that the brain's pruning ability is disrupted
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科学家发现, 大脑的修剪清理过程,
02:38
in people with bipolar disorder.
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在躁郁症患者身上受到了干扰。
02:40
That means their neurons go haywire
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这意味着神经元连接失控,
02:43
and create a network that's impossible to navigate.
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形成了一个 无法正确导航的网络。
02:46
With only confusing signals as a guide,
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在混乱的信号指导下,
02:49
people with bipolar disorder develop abnormal thoughts and behaviors.
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躁郁症患者产生异常的想法和行为。
02:53
Also, psychotic symptoms,
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同时,精神病症状
02:55
like disorganized speech and behavior,
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比如言语混乱、行为失控、
02:57
delusional thoughts,
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妄想、
02:59
paranoia,
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偏执、
03:00
and hallucinations
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以及幻觉
03:01
can emerge during extreme phases of bipolar disorder.
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会在躁郁症的极端阶段出现。
03:05
This is attributed to the overabundance of a neurotransmitter called dopamine.
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这是由于存在过多的神经递质 多巴胺导致的。
03:11
But despite these insights, we can't pin bipolar disorder down to a single cause.
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即便如此,我们不能 把躁郁症的成因归结成一个。
03:17
In reality, it's a complex problem.
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实际上,这是个很复杂的问题。
03:20
For example, the brain's amygdala is involved in thinking,
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比方说,大脑的杏仁核与思考,
03:23
long-term memory,
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长期记忆
03:24
and emotional processing.
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和情绪处理有关。
03:26
In this brain region, factors as varied as genetics and social trauma
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在大脑的这块区域, 遗传因素和社会创伤等因素
03:31
may create abnormalities and trigger the symptoms of bipolar disorder.
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可能形成异常并引发躁郁症。
03:36
The condition tends to run in families,
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这种情况往往在家族中发生,
03:38
so we do know that genetics have a lot to do with it.
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我们知道这与遗传基因有很大关系。
03:42
But that doesn't mean there's a single bipolar gene.
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但是这并不意味着 有一个躁郁症的基因存在。
03:45
In fact, the likelihood of developing bipolar disorder
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实际上,躁郁症的形成
03:48
is driven by the interactions between many genes
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是许多基因共同作用的结果,
03:52
in a complicated recipe we're still trying to understand.
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我们仍然在试图找到答案。
03:55
The causes are complex,
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由于躁郁症成因复杂,
03:57
and consequently, diagnosing and living with bipolar disorder is a challenge.
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要症断出躁郁症 并与之共处是很有挑战的。
04:02
Despite this, the disorder is controllable.
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尽管如此,躁郁症是能够被控制的。
04:05
Certain medications like lithium can help manage risky thoughts and behaviors
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一些药物,比如锂盐 能够控制危险的想法和行为
04:09
by stabilizing moods.
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以平稳情绪。
04:11
These mood stabilizing medications work by decreasing abnormal activity in the brain,
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这些稳定情绪的药物 通过减少大脑中异常活动
04:17
thereby strengthening the viable neural connections.
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来加强有效的神经连接。
04:21
Other frequently used medications include antipsychotics,
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其他常用的药物 包括抗精神病药
04:24
which alter the effects of dopamine,
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通过改变多巴胺的作用
04:27
and electroconvulsive therapy,
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以及采用电休克疗法
04:29
which works like a carefully controlled seizure in the brain,
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来人为控制大脑的癫痫,
04:32
is sometimes used as an emergency treatment.
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这种疗法有时也被称为紧急治疗。
04:35
Some bipolar patients reject treatment
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一些躁郁症患者拒绝治疗,
04:38
because they're afraid it will dim their emotions
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因为他们担心治疗会让他们情绪低落
04:40
and destroy their creativity.
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并扼杀创造力。
04:42
But modern psychiatry is actively trying to avoid that.
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但是现代精神治疗法 正在努力避免这种情况。
04:46
Today, doctors work with patients on a case-by-case basis
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如今,医生会根据每个病人的情况
04:49
to administer a combination of treatments and therapies
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制定出混合的治疗方法,
04:53
that allows them to live to their fullest possible potential.
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让病人的生命发挥充分的潜力。
04:56
And beyond treatment, people with bipolar disorder can benefit
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除了治疗以外,躁郁症患者可以从
05:00
from even simpler changes.
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很简单的改变中受益。
05:02
Those include regular exercise,
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这包括定期运动,
05:04
good sleep habits,
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形成良好的睡眠习惯,
05:05
and sobriety from drugs and alcohol,
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节制毒品以及酒精饮料,
05:08
not to mention the acceptance and empathy of family and friends.
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当然还包括 来自家人和朋友的接纳和认同。
05:12
Remember, bipolar disorder is a medical condition,
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请注意,躁郁症是一种身体状况,
05:15
not a person's fault,
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这不是患者个人的错,
05:17
or their whole identity,
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也不是他整个人身份的问题。
05:18
and it's something that can be controlled
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这是一个能被控制的症状,
05:20
through a combination of medical treatments doing their work internally,
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可以通过药物治疗 在脑内发挥功效,
05:24
friends and family fostering acceptance and understanding on the outside,
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加上外部来自家人和朋友的 接纳和理解,
05:29
and people with bipolar disorder empowering themselves
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同时患者自身努力
05:32
to find balance in their lives.
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去寻找生活的平衡。
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