:

What Happens at the Age of 90? A Comprehensive Guide to the Nonagenarian Years

According to the U.S. Census Bureau, the population of nonagenarians (people aged 90 and over) is one of the fastest-growing age segments in the United States. Understanding **what happens at the age of 90** is crucial, as this life stage presents a complex and unique interplay of physical changes, cognitive shifts, and rich social dynamics.