I’m always asking the question:
“What’s the least amount of time I can spend exercising and get optimal results?”
That’s a hard concept for most to wrap their head around, but that’s the goal.
Anything below MED is ineffective.
Anything beyond MED is wasteful.
Anything beyond MED can be harmful.
For example: to boil water, the MED is applying heat to the water until the water temperature reaches 212°F at sea level. Boiled is boiled. It isn’t going to get any more “boiled” raising the temperature to 213°F.
Raising it any higher than 212°F is a waste of resources that could be better used elsewhere.