I have seen a few very long threads about it but am not sure what it is exactly. could someone enlighten me? I gathered it is a DVD (but am not sure, could it be a book).
I need to get fitter and would like to know what I have to invest into, like weights? trainers?... is it something I can do in my livingroom (not very big) or outdoor? Is it OK for someone like myself who does walk a lot but rarely exercise? How much time does it take you and how many times a week? Most importantly, does it make you feel better and fitter for real?