We've all heard of or done HIIT so I'm wondering what y'all's opinions of it is. I have read numerous articles claiming that it is the best form of fat loss, that the burn lasts longer than steady cardio, and that studies show it burns more fat in the long run. I've also read articles by people like Martin Berkhan that say it is unnecessary and very tough on the central nervous system/adrenals. I personally do it 2-3 times a week with lifting on 2 days because it makes the workout go by super fast and it feels very effective. Do you guys do it too? Do you think it's overrated?