Scientists have declared that 72 is the new 30! Dr. Marc Siegel explains that the German study bases this number on the fact that of the 8,000 generations of humans who have inhabited the planet, the last four have lived much longer.

In 1900, people lived about 40 years. Now, we live around 80 years. Dr. Siegel attributed the increase in life expectancy to “vaccines, clean water, antibiotics, more public health.”

While this is great news, it begs the question -- how are we going to pay for it?

That’s where Fox Business Network’s Stuart Varney comes in.

“I’m prepared to say that longevity, these increases in life expectancy, are going to force the reform of Social Security and Medicare,” he said.

Varney points out that in 1935, when Social Security began, life expectancy was 61.7 years. In 2010, it was 78.7 years.