The Secret to Living Past 80: Make it to 65

Doctors conclude. in the July issue of Harvard Health Letter that one of the best ways to help ensure you'll live past 80 is to first set your sights on making it to 65.

The Harvard Medical School publication also finds that according to various studies, Americans are living significantly longer and healthier lives than just a few years ago.

But even though the life expentancy for Americans has gone up over the years, it still lags behind other countries.