John is receiving physical therapy for an injury to his shoulder. The therapist moves John's arm up and outward, away from his midline. This is called:

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)

Breastfeeding should last for 12 months.

Yes i have used it before

S what’s the