For the past several years I have gotten the opinion that the general concensus in the training field that HIIT is the way to do cardio due to its less catabolic properties. However, I have just started the Art of Waterbury program and see where he recommends in this as well as many other programs, days of light cardio.
My question is this, would doing HIIT sessions of 15-20 minutes lead to overtraining? Based on what I have read, I thought that HIIT was basically the newly established "right way to do cardio". Any insight on this is welcomed. Thanks.