sclerosis

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My dad was diagnosed with multiple sclerosis in the prime of his life.
我爸爸被诊断有多种硬化症，当他壮年的时候。
But at age 21 he developed the first symptoms of amyotrophic lateral sclerosis (ALS), a disorder that would inevitably render him paralyzed and incapable of performing most kinds of work.
可是他在21岁的时候，出现了肌萎缩性（脊髓）侧索硬化的征兆；这一疾病不可避免地要导致瘫痪，使他很多事都不能做。
An important task, as malfunctioning of the astrocyte transporters is known to play a role in neurological and neurodegenerative diseases such as epilepsy and the amyotrophic lateral sclerosis (ALS).
重要的任务是，在癫痫和肌萎缩性脊髓侧索硬化症这样的神经性和神经变性疾病中，星状细胞转运蛋白的不正常工作扮演着某种角色。

It is estimated that more than 2,500,000 people worldwide suffer from multiple sclerosis, which also is called MS.
The National Multiple Sclerosis Society says one in every 750 Americans is at a risk of developing MS.
Some of the diseases are well known, such as rheumatoid arthritis, multiple sclerosis and type-one diabetes.

Actually, the 48-year-old Singleton hasn't slowed a bit, despite the onset of multiple sclerosis.
FORBES: Where's Dean?

a medical condition that causes body tissue or organs to become harder, especially the arteries (= thick tubes carrying blood from the heart)

Sclerosis is a medical condition in which a part inside your body becomes hard. &rarrsee also multiple sclerosis