If your doctor could prove to you that you were going to die in exactly 2 weeks if you didn’t do at least 30 minutes of exercise everyday until then, would you do it? Of course you would! We all have a date with death. I don’t know about you, but I want to live as long and as fully as I can. Self-preservation involves taking good care of ourselves. Some choose natural bodybuilding and the Muscle Mastery Training System to become fit and build their dream physique without steroids.