Loss of cognitive function in the years before death may result from either the progressive nature of a disease or the disorienting side effects of medication and painkillers, depending on the threat to a patient's sense of self.
Dementia is the loss of cognitive functioning, including thinking, remembering, and reasoning, as well as behavioral skills to the point where it affects day-to-day activities. Language difficulties, vision issues, and attention issues are examples of symptoms. Personality changes can occur in some persons. Alzheimer's disease, frontotemporal diseases, and dementia with Lewy bodies are only a few of the several types of dementia.
People with MCI have more memory or thinking issues than other people their age, but they can still carry out their regular daily activities. Alzheimer's disease is more probable in MCI patients than in those without it. However, Alzheimer's disease does not always progress in MCI patients.
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