General fitness. I've exercised most of my life, and I am constantly helping people start out. I am not a professional athlete, but I have a vast general knowle

General fitness. I've exercised most of my life, and I am constantly helping people start out. I am not a professional athlete, but I have a vast general knowledge of anatomy, physiology, training plans, etc. It makes learning new things ("I'd like to run a marathon") so much easier, safer and more efficient if you have some foundational knowledge.