More than 5 million Americans currently have Alzheimers, but that number is expected to double by 2050.
But behind each one of those millions is a personal story, often a devastating one, of people like Jackie Belcoe.
Jackie was a widow with no children, and her care fell first to her brother, and then her niece, writer Tiffany Stanley.
Tiffany's wrenching experience caring for her aunt is the cover story for the latest edition of National Journal titled, "Jackie's Goodbye."
Tiffany joined Take Two recently to talk about her aunt and what she learned while she cared for her.