Which of the following statements is true regarding dementia?

Dementia is accurately described as a form of cognitive impairment. It is characterized by a decline in cognitive function severe enough to interfere with daily life, which encompasses various aspects of cognition such as memory, reasoning, problem-solving, and communication. While memory loss is a prominent feature of dementia, the condition can also affect other cognitive abilities, including judgment and decision-making.

The other statements fail to capture the complexities of dementia. For instance, dementia is generally regarded as an irreversible condition in most cases, which means that it typically cannot be completely cured. Additionally, dementia is not unrelated to cognitive impairment; instead, it is a specific type of cognitive impairment. Lastly, dementia does not solely affect memory; it impacts a wider range of cognitive functions, which is an essential distinction in understanding the disorder.