Video: What is Amyotrophic lateral sclerosis (ALS)?

You’ve probably already seen people pouring ice water over their heads during the past months as part of the ALS ice bucket challenge.But what is this social media trend all about? In one of his famous videos, Salman Khan explains the symptoms of the disease and what makes it so horrible. For further reading, it’s recommended to check out the Wikipedia entry onĀ Amyotrophic lateral sclerosis (ALS) – there’s a lot of information there.

Source: Get more knowledge from Khan Academy/YouTube

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