在22岁的时候他被诊断患有肌肉和神经系统不可治愈的疾病——肌肉萎缩性脊髓侧索硬化症，并且医生说他的寿命不会很长。

Doctors gave him only a limited lifespan after he was diagnosed at the age age of 22 with the incurable disease of the muscles and nervous system, Amyotrophic Lateral Sclerosis.

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大约十年间，科学家们一直尝试利用干细胞使神经退变性疾病中的神经细胞再生，例如帕金森病，阿尔茨默病和肌萎缩侧索硬化。

For around a decade, scientists have been trying to regrow nerve cells lost in neurodegenerative diseases such as Parkinson's, Alzheimer's and amyotrophic lateral sclerosis (ALS) from stem cells.

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什么是肌萎缩型侧索硬化症(ALS)，也称运动神经元症(MND) ？囹。

What is amyotrophic lateral sclerosis (als), also known as motor neurone disease (MND)?

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