Cardio isn't scientifically speaking great for fat loss due to a variety of reasons, but that doesn't mean its bad, it just needs to be used appropriately and be fully understood. Join Tom and I as we venture down the cardio rabbit hole and look at human physiology, environmental factors, habit stacking, weight training vs cardio for fat loss, body composition, healthy ageing, and more, then you can decide how much cardio you're off to do....