We all want to bask in the fountain of youth for as long as we can, but both men and women shouldn't resort to anti-aging products as the first line of defense. Life expectancy is a statistical measure of how long a person or organism may live, based on the year of their birth, their current age and other demographic factors including gender. Foods are not just the only option to help you living longer. Here are 7 secrets to living a long and healthy life.