Elsewhere in Asia, the graying of the population is less pronounced, though the beginnings of a phenomenon similar to what is happening in Japan are already visible in Hong Kong and, less obviously, Singapore.

CNN: WHERE IT'S GOOD TO BE OLD

The graying of the U.S. population and the Affordable Care Act, known as Obamacare, will increase the demand for medical services.

FORBES: Doctor, Doctor, Why Won't America Let In More Doctors?

America risks following Europe and Japan into the trap of a falling population combined with the spiraling entitlement costs of a graying society.

WSJ: Review & Outlook: The Immigration Windfall

With the graying of our country's baby boomer population, the U.S. is on the verge of a vision loss epidemic.

FORBES: Tara A. Cortes