What percentage of Americans age 65 and older had Alzheimer's disease in 2013?

In 2013, data indicated that approximately 11% of Americans aged 65 and older were living with Alzheimer's disease. This statistic is significant as it provides insight into the prevalence of Alzheimer's among the elderly population, emphasizing the increasing concern regarding cognitive health in aging individuals. The figure reflects the growing impact of Alzheimer's on the healthcare system and society, highlighting the need for awareness, support, and research in managing this condition.

The other answer choices reflect varying percentages, but the 11% figure is based on research and reports from reputable health organizations focused on aging and Alzheimer's disease. These reports help to underline the importance of understanding demographic health issues, especially as the population of seniors continues to grow.