Which form of dementia is associated with problems such as memory loss and impaired reasoning?

Alzheimer's Disease is characterized by memory loss and impaired reasoning, making it the most prevalent form of dementia. In Alzheimer's, memory deficits often manifest as difficulties in recalling recent events, names, or conversations, and can progress to more severe cognitive impairments affecting daily functioning. Impaired reasoning is often evident as the disease advances, impacting the individual’s ability to plan, organize, or perform tasks that require logical thought.

In contrast to Alzheimer's, Creutzfeldt-Jakob Disease typically presents with rapid cognitive decline and personality changes, along with other neurological symptoms, rather than focusing primarily on memory loss and reasoning impairment. Lewy Body Dementia is known for visual hallucinations and fluctuating cognitive functioning, which differentiates it from the primary memory and reasoning issues seen in Alzheimer's. Huntington's Disease is a hereditary condition that primarily affects movement and can lead to cognitive decline, but the initial symptoms often include chorea and emotional disturbances rather than straightforward memory issues. Thus, Alzheimer's Disease is the most accurate choice based on the specific cognitive challenges outlined in the question.