YouTuber MindAmend.com designed this sound track for ADHD sufferers. It works by speeding up your brain while keeping your left brain hemisphere dominant. This is good for increasing concentration, attention and reducing emotional response and hyperactivity. ADHD is usually characterized by "slow-wave" EEG patterns, particularly in the left frontal region. This session stimulates the left brain hemisphere with a much higher frequency than the right. Both ears start with the 10Hz frequency, then ramp up until the 15 minute mark. At this stage, the right ear (left brain hemisphere) receives 40Hz for an extended period, and the left ear (right brain hemisphere) receives 14Hz. Use headphones.