JPC Newsletter Justin Jennings 9/1/2026 Cardio: The most misunderstood tool in all of fitness When you think of doing cardio what do you think of? Does it conjure up images of treadmills, spin bikes, and step mills? Do you think of going for a walk? Maybe you think of burning fat. Today we are going to discuss cardio, proper use cases for cardiovascular training, and common mistakes people make around cardiovascular training. What Is Cardio? The dictionary definition of cardiovascular...