Subjects Discussed: * The nature of fitness and the purpose of exercise * The "Body by Science" or "SuperSlow" method * Safety in Body by Science workouts * Other benefits of Body by Science * Dr. McGuff's discovery of the Body by Science method * Workouts for older, overweight, and weak people * What's wrong with "cardio" * The injury rates in CrossFit * The role of evolutionary theory in fitness * Doing CrossFit as a sport * The value of a trainer (or workout partner) * Sticking with Body by Science over time * Calf raises * Leg extension and knee injuries * Leg extension and leg press * Optimal strength gains * Timed static contractions.