An older friend of mine (not that old maybe 25 or so) said that in a few months his navy seal training he gained 16 pounds of lean tissue and his bodyfat level dropped to 9% from about 18%!. This is not hard to believe because i know a few army rangers who had similar results and they're training is less intense. What i do know is that they work their ass off all day every day with cardio and calisthenics. no pumping iron. This is obviously against the popular train one bodypart a week, eat perfect, and rest most the time principle, and yet they yield very impressive results. Why do you think this is? Diet? secret energy hidden in their meals? magic? WTF?