I have Bean working out six day a week since 2000 ,I'm 42 eat well 6 meals Daly .Just for a change of paste I started P90X about 3 weeks ago, and let me tell you it's great, muscle confusion always confusing the muscles Monday yoga, Tuesday leg and back and abs,Wednesday kenpo karate, Thursday rest, Friday chest and back, Saturday arms and shoulders and abs, Sunday plyometrics have a look at P90X it's great !