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Why does amyotrophic lateral sclerosis cause speech problems?

Amyotrophic lateral sclerosis (ALS) generally diminishes the body's control over muscles, weakening them secondarily. The muscles in the tongue can be some of the first to cause difficulties. ALS also affects the soft palate and vocal chords. Later on in the course of the disease, ALS's effects on the lungs make breathing more difficult, which also hinders speech. Speech problems that result from ALS include: a change in rhythm, slurred or slow speech, and changes in the tone or volume of voice.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.