I have mixed feelings. For some, the problem really is time. For these people, HIIT may be the right way to go. But you&#x27;re right that people don&#x27;t realize just hard a real HIIT workout is.<p>I have difficulty maintaining what is supposedly the proper level of intensity (according to my previous trainer) without throwing up afterwards. It&#x27;s not exactly a fun and easy way to get in shape.