This is a question that only you yourself can answer. No use of asking someone else to try and describe your aggression towards a family/friend.
True, some stretching exercises can be harmful, even if performed correctly.
There are many stretching exercises that can cause you problems. The most sensitive spots on your body are your neck, your back, and your knees. The most common stretching technique is to bend over and touch your toes (even doctors will tell you to do this at times). Doing that will cause tension in your lower back which may be bad going forward.
Answer:
A.joints range of motion cannot be maintained with age
Some student can be mean in class
