Answer :
Muscle cells that are not exercised get atrophied or shrink in size. Lou Gehrig's disease affects nervous tissue but also causes muscle atrophy. The nerve cell that must be affected to cause this muscle-wasting condition is motor neuron.
Lou Gehrig's disease is also known by the name Amyotrophic lateral sclerosis (ALS). Here, the nerve cells break down causing the weakening of muscles. The actual cause of the disease is unknown. The disease cannot be treated permanently.
Muscle wasting is actually the weakening of muscles. This weakening could be due to shrinkage or loss of muscle. The consequences are the loss of strength as well as ability of movement. If not treated timely and accurately, it can even lead to adverse conditions like heart failure, sepsis, etc.
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