I was once told by a man who was 84 that he will live as long as he has passion. I was buying a horse from him - he proudly showed me the foals who were the results of his breeding program. He said that waiting to see the results of his various breeding programs each year was keeping him alive. I'm 64 and finally retired so I could pursue some of my passions. Finding something to be passionate about is key to living whatever life we have left.