How to get fit in your 50`s

Well tonight is it my last chance to get some fitness before Christmas festivities begin. Circuits here I come 1 hour of hard slog and then off to the pub. Its fair to say that this week I have only been to the gym twice and completed body attack, a high level aerobic workout that certainly gets the lungs jumping. On Monday I even encouraged my son and his friend to join me, to say it was memorable is an understatement, however at least they did turn up and they did do quite well and what`s more they will be joining me again.