Over the past few years,Mrs.Wilson,who is 78 years old,has become increasingly susceptible to bouts of pneumonia.This is most likely due to

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As people age, their immune system weakens, making them more susceptible to illnesses such as pneumonia. This is likely the reason why Mrs. Wilson has become more prone to contracting pneumonia over time. A slower neural processing or changes in brain plasticity and neurogenesis would not directly affect her susceptibility to pneumonia.

Over the Past Few Years,Mrs