The aim of a long life is a good goal to have provided you are healthy, active and happy. This way you can enjoy the older end of your life in the way that you would like, rather than being sick and struggling to do anything you like.

From what I can tell, those that enjoy a long happy life are those who socialise and have fun with friends and family, keep active and have hobbies and reasons to get out and about into the world everyday. That is what I hope for myself when I get to retirement age.