Best Physical Therapist NYC Dr. Karena Wu joined The Third Hour at The Today show this morning to talk text neck and poor posture. Text neck is a repetitive stress injury to the neck due to the prolonged forward head positioning. For every inch forward the head sits in front of the torso, it increases the load in the cervical spine by 10 pounds! Dr. Wu discussed how to place the phone and where to position the head for less stress on the neck. She also instructed the on camera and production crew of NBC on how to do chair exercises to correct the poor posture from text neck.