When in the Course of human events, it becomes necessary for one people to dissolve the political bands which have connected them with another, and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature's God entitle them, a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation.
Some researchers believe that there's a limit on how many years a human being could live, the maximum being 125. Others see a world in which we have centenarians walking around with people who have lived for 500 or 1,000 years. Diseases related to aging, like dementia and heart disease, currently block us from reaching that point. Our body parts wear out from use.
When you think about retirement, be sure to plan for the long term. A man who turned 65 in 2014 can expect to live about another 19.3 years. A woman who turned 65 the same year can expect to live about another 21.6 years. And those are just averages. About one out of every four 65-year-olds today will live past age 90.