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What are the three categories of late adulthood? A developmental guide

Research from the National Council on Aging shows that by 2040, nearly 78.3 million Americans will be aged 65 and older. This diverse and rapidly growing population requires a more nuanced understanding than a single "senior" label. Understanding **what are the three categories of late adulthood?** is essential for appreciating the distinct experiences, needs, and characteristics of individuals during this life stage.