Even a person who likes fitness so much that he is obsessed with it, I'm afraid he won't be exercising all day, not to mention that you have to eat, drink, go to the toilet and sleep, all of which are necessary for survival. Even if you insist, your body can bear it.
Of course, if you just stay in the gym all day, that's fine. You can stay there every day if you want, but you don't have to keep moving when you go to the gym. I'm afraid ordinary people can't afford this kind of high-intensity training.
If you persist, it may be harmful, that is, it will hurt your body and destroy your willpower. Oh, no, it is exercise. I don't know if you can keep exercising all day, but your willpower is definitely much stronger than that of the average person.
I bought a vacuum cleaner, and then wrote the notes in the manual, telling the user that the continuous working time should not exceed half an hour, otherwise the motor may be burned out. Our bodies are much more accurate than vacuum cleaners. Although it may be a little more durable, it is still flesh and blood after all. The machine will rest after running continuously for a period of time, not to mention people.
Fitness is something that needs long-term persistence. If you want the effect of fitness to appear faster, then I can understand your choice of exercising all day, but unfortunately, it is really useless.
If you really want to experience the fun of fitness, then extend your persistence time horizontally instead of tearing yourself vertically.