As Americans' average life expectancy grows longer and exceeds 80 years, millions of Americans are now facing more significant health issues that they may not be able to afford.

The fastest-growing segment of the American population is among adults 85 years and older, and baby boomers account for 42 percent of all Americans over the age of 21. As a result, longer life spans are leading to more health problems, which in turn cause greater concerns for how to afford healthcare.

Millions of older Americans now require regular treatment for chronic problems, and care can get expensive in a hurry. Insurance is typically costly, especially for retirees who may not have comprehensive coverage as a result of their no longer having an employer to provide it. Often, even coverage from government programs such as Medicare can fall short in providing the care needed.

Consequently, many experts have taken to recommending that older Americans seek as much preventative care as they can, which may help to nip larger health concerns in the bud before they become cost prohibitive.