Amyotrophic lateral sclerosis (ALS), often referred to as "Lou Gehrig's Disease," is a progressive neurodegenerative disease that affects the efferent division, particularly the motor neurons, of the nervous system. People with ALS have normal bodily functions and their ability to think, form memories, and to detect sensations is all normal. However, the progressive nature of this disease can lead to total paralysis. Based on your knowledge of the different divisions of the nervous system and the functioning of neurons, explain the symptoms of ALS.
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