Primary Lateral Sclerosis Migraine

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Definition

Amyotrophic lateral sclerosis, or ALS, is a disease of the nerve cells in the brain and spinal cord that control voluntary muscle movement.

ALS is also known as Lou Gehrig's disease.


Alternative Names

Lou Gehrig's disease; ALS; Upper and lower motor neuron disease; Motor neuron disease


Causes, incidence, and risk factors

In about 10% of cases, ALS is caused by a genetic defect. In the remaining cases, the cause is unknown.

In ALS, nerve cells (neurons) waste away or die, and can no longer...

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