Comment Generalities don't apply (Score 1) 478
Bioethicist makes him sound like a scientist, his comments do not. As anyone with a wit of common sense can tell you for various reasons, some people live better longer than other people.
Perfect of example:
http://en.wikipedia.org/wiki/H...
The current mayor of one of the larger cities in Canada, and has been since the 1970's and she is 93 years old. She is about to retire this year, even then when asked she wants to stay in the political game. To see her in an interview, she has certainly not diminished, and is probably sharper than most at any age. In another case a rock star in his 50's was diagnosed with early onset dementia in BC, Canada recently. That is a pretty big spread. Now you might be able to say, statistically 75 is about the right age, but you don't use statistics to figure about variables like that.
That fact is it varies from person to person for a lot of different reasons, genetics, lifestyle, environment, dumb luck, and for that reason only your own personal individual assessment is going to be relevant. Should people stop doing things that are good for them after 75 if they are feeling good, I don't think so. There are extremes of course, but for the most part I am not sure most people are like that.