Stretching that is characterized by a "bouncing" action is called
Ballistic stretching.
It helps efficiently to increase your range of motion but is known to create an injury. That's why they tell you NOT to do this specific exercise, unless you have a professional trainer with you that can help you.
Anyways, Good Luck! :)
False.Teen pregnancy can be dangerous to ones physical well being.
Such as if the teen has a fallopian pregnancy where the baby is developed in the fallopian tubes. This requires the baby to be removed by C-section and causes damage to the fallopian tubes.