Which of the following describes the best method for keeping the endocrine system healthy?

Your answer is false

Magnesium! this is found if caves usually

The answer would be c (set)hope this ! (:

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)