True or false: good stretching will cause some pain

I think the correct answer is true. Good stretching will cause some pain. Take note only a mild pain or discomfort should be felt. If you are feeling pain while stretching, you may be stretching too intensely and this could cause injury.  Hope this answers the question.

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)