As we get older several unwanted things happen. Among these are a) relexes slow down. b) you dont bounce as well as you used to This has really been brought home by that accident to Ben Swift of team Sky fame. Out training he hit a loose stone!! Ruptured spleen and in intensive care. I am now 72 and just feel very uneasy when I get to my magic figure of 25. I dont advocate that for others, its just how I feel.