What is the difference between ADD and ADHD?

What is the difference between ADD and ADHD

ADD and ADHD do not have the same symptoms, but what exactly is the difference between ADD and ADHD? ADD is a group of ADHD, or attention deficit hyperactivity disorder.

Using a modern, innovative biofeedback device like the QUEX S® , ADHD can reduce symptoms by training a child or adult’s brain with playful tasks that require concentration.