There is some data I've read that says that aggressive working out can release stress hormones, particularly in women, which can slow weight loss. This is not the sort of working out that you enjoy, but really pushing hard in the gym with HIIT and not properly recovering. Me personally, I have enough stressors to add another one. So I'm inclined to do what workouts feel good and that I enjoy, give myself break days when I need it, and leave the hardcore workouts to those who like to put in time at the gym and don't mind stressing out their bodies. I get enough sympathetic activation in traffic. 😂