I kind of have a "window into the future" by watching my older siblings. I am 64-my brother is 77 and oldest sister is 75. My brother is actually in better shape than my sister,no doubt because he quit smoking many years before she did. She has COPD. He has played a minimum of 18 holes of golf every day since he was 12 years old,and does not use a cart-he walks the courses. So he`s in pretty darn good shape. I was concerned about him when we went to the hospital last Saturday because we got the call that his wife was not expected to survive (so far,she has,and is slowly improving). Anyway,I noticed that his hands were shaking a bit and he looked older than I`ve ever seen him look. But he had just spent 36 hours at the hospital with her and I know wasn`t eating or sleeping. Once hubby took him home for a shower and change of clothes and we all went out to eat,he looked and sounded much better. Our dad and mom died at 65 and 70, both of heart attacks,so they are outlasting them. I figure 80 will most likely be the max for me,and that`s fine I guess...