But the other surprising thing is how late in life we can start treatments, whether they are medical treatments, whether exercise programs, changes, and diets, and still have a substantial effect on the remaining period of life. Dr. Steven Austad, PhD. Dr. Anton Titov, MD. 

I used to think that if you didn't start these things in your 20s or 30s, there was just too late to have much of an impact on later-life health. We now know that that's not true. It's never too late. And so that's the second surprise that I think I would have never suspected. And since I'm older now than I was when I started this, this is a very gratifying thing to discover. Dr. Steven Austad, PhD. Dr. Anton Titov, MD.