More and more people are living to 100 years old and more these days and according to the U.S. Census by the year 2040 there will be 580,000 people in America that are 100 or older, currently there are 84,000. With medical research and the push for healthy living and eating, the age of men and women is increasing. There are 7 things you should be doing if you want to live to 100.