Doctors also believe that bipolar disorder is partly genetic.
医生们还认为,双相情感障碍在一定程度上是遗传的。
It can affect several people in the same family.
它可以影响同一个家庭中的几个人。
But it is not usually caused by a single gene.
但它通常不是由单一基因引起的。
And finally the environment a person grows up in is important.
最后,一个人成长的环境也很重要。
Doctors think that bipolar disorder may be partly caused by emotional pain - especially emotional pain that people experience as children.
医生认为,双相情感障碍可能部分是由情感痛苦引起的--特别是人们在孩提时期经历的情感痛苦。
The sickness usually develops when a child becomes a young adult.
这种疾病通常在孩子成长为年轻成人时产生。
It may start with a stressful event like a divorce or a job loss.
它可能始于一件有压力的事情,比如离婚或失业。
Or it may start with the use of illegal drugs.
或者,它可能从使用非法药物开始。
There is no cure for bipolar disorder.
双相情感障碍是无法治愈的。
But there are several kinds of medicine that can control it.
但有几种药物可以控制它。
The traditional medicine for bipolar disorder is lithium.
治疗双相情感障碍的传统药物是锂。
Lithium helps to control both the high and the low emotions.
锂有助于控制情绪的高涨和低落。
But many people do not want to take lithium.
但许多人不想服用锂。
It does help people with their sickness.
它确实能帮助人们克服疾病。
But it causes side effects.
但它会产生副作用。
The side effects trouble some people.
副作用困扰着一些人。
For example, lithium can make people experience very few emotions.
例如,锂会让人很少体验到情绪。
Some people do not even feel like the same person.
有些人甚至感觉不像是同一个人。
Also people must take lithium for a long time to keep their emotions calm.
此外,人们必须长时间服用锂以保持情绪平静。
If they stop taking it they may become sick.
如果他们停止服用,他们可能会生病。
Although there are some problems with lithium, it helps many people to deal with their sickness.
虽然锂有一些问题,但它帮助许多人解决他们的疾病问题。
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