Blowing out 100 birthday candles is more possible than ever. According to the U.S. National Institute on Aging, we're on the brink of a watershed moment in history. Quite soon, there will be more people on Earth who are 65 than 5.
And longevity is reaching new records. The oldest documented woman alive today is 116—this means she was 45 years old during the attack on Pearl Harbor, 73 years old when the first man walked on the moon, and already 93 when the Berlin Wall fell.
So what does it take to live to 100? According to study conducted by the Journal of the American Geriatrics Society, it's mostly a matter of genes. But science is also showing that even small efforts toward taking care of our health, such as exercise and diet, can have a striking effect on how long we live.
But what about quality of life after 100? We've gone around the U.S. to find centenarians who are showing us the way. Our centenarians offered great insight. This advice might not be anything we've not heard before, but it takes on deeper meaning when it's from those who have lived long enough and well enough to know what they're talking about.