About 15 years ago I was standing in front of a delicious buffet about to help myself to a third huge portion when a thought suddenly popped into my head. I could either have that next portion and therefore choose to get old, fat and unfit or I could now decide to get slim and fit in my middle age (not much I could do about getting old). I decided on the latter. Since that day I have trained at least 3 times a week, run countless 10k 'races' and made some of the most fantastic friends at my various training and running clubs. I'm 48 and now either run, swim or do circuit training almost every day. My body is a bit of a wreck with numerous injuries, aches and pains and I don't run nearly as well as I once did but I do feel great.
So, anyone out there at that 'buffet' stage who wonders if getting old, fat and unhealthy is all that's ahead of them, let me say there is a really great alternative.