If you could create the perfect animal or human, what internal traits and what external traits would they have? Describe the traits of the parents.

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)

Bis the answer hope i