Recent studies have highlighted that life expectancy has risen in the United States and Michigan resident Jeralean Talley is living proof of that. Talley, oldest person in America and second oldest in the world, celebrated her 115th birthday, May 25. So what's the secret of her long life? According to Peter Lichtenberg, director at Wayne State University's Institute of Gerontology, it is motivation and determination of movement that is the key to longevity. "One of the areas of research that we're getting really interested in as a field is how much movement people have - really just having your bodies in motion. It's not just 30 minutes of exercise and sit the rest of the day. It's moving around, being active," he said, according to Detroit Free Press. That's walking, being out with friends, gardening - refusing to be dictated to by the flipping pages of a calendar, Lichtenberg said.

http://www.hngn.com/articles/32282/20140527/oldest-american-alive-turn-115-years-whats-secret-long-life.htm
http://www.usatoday.com/story/news/nation/2014/05/26/oldest-living-american-115-birthday-celebration/9599875/
http://www.freep.com/apps/pbcs.dll/article?AID=2014305260021