logan has suffered a deterioration of some of his intellectual and physical abilities that has occurred over the course of a long period of time. logan is experiencing the death of brain cells. which condition is occurring?

Neurodegeneration

Explanation:

The term neurodegeneration refers to a group of disorders which are characterized by a progressive waste of function or structure of neurons, that in worst cases can include death of neaurons.

Many neurodegenerative disorders such as  Parkinson's disease,– including amyotrophic lateral sclerosis, Huntington's disease  and Alzheimer's disease can occur due to neurodegeneration.

Neurodegeneration can manifest itself in various forms such as lack of physical and intellectual abilities like inability to use muscles or memory loss. These disorders cannot be completely cured and ultimately lead to the death of neurons.

As mentioned in the question, the person suffers from progressive loss of  intellectual and physical abilities that has occurred over the course of a long period of time. Therefore, it is most probable that he is having some neurodegenerative disorder.

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