Amyotrophic lateral sclerosis (ALS, or Lou Gehrig disease) is the most common form of motor neuron disease. Typically, muscles are weak and waste away, and movements become stiff, clumsy, and progressively more difficult to execute. Learn more: https://mrkmnls.co/4kgLh0T | Merck Manual Consumer
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Amyotrophic lateral sclerosis (ALS, or Lou Gehrig disease) is the most common form of motor neuron disease. Typically, muscles are weak and waste away, and movements become stiff, clumsy, and progressively more difficult to execute. Learn more: https://mrkmnls.co/4kgLh0T | Merck Manual Consumer
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