In the last 12 months I have been lifting less, but doing a lot more P90X type excercises usually an hour at a time, 3 to 5 times a week. I've taken stock and I am not happy with the results. I am not leaner, in fact I am 8-10 lbs heavier than when I was just lifting 4 to 5 times a week, 2 body parts a session and 20 min HIIT on the treadmill a couple times a week. I'm also not happy with the muscle mass I believe I've lost. So no leaner, in fact, a little more body fat, and less muscle.... time to stop the insanity..