"Viewed through the prism of neurotherapy, human beings do not suffer an epidemic of depression, chronic pain, immune system dysfunction, addictions, anxiety, or any one of a laundry list of other affections. Instead, the epidemic is in hyperactive or worn-out nervous systems - buffeted by birth perhaps, infancy and childhood certainly, by a culture that encourages overwork and has created some of the most stressful places on earth: modern cities"

"A Symphony in the Brain" by Jim Robbins

Therapeutic applications

Neurofeedback has been effectively used with following problems:

ADHD (Attention Deficit Hyperactivity Disorder)
ADD
Learning Disabilities (including dyslexia)
Anxiety
Problems with Memory
Sleep Disorder
Bed Wetting
Depression
Chronic Pain
Chronic Fatigue Syndrome
Migranes and other headaches
Pre-Menstrual Syndrome
Epilepsy
Post-Traumatic Stress Disorder
Stroke
Addictions
Attachment Disorder
Autism
Eating Disorders (anorexia, bulimia)
Autoimmune Dysfunction
Obsessive-Compulsive Disorder
Tourette's Syndrome
Traumatic Brain Injury

If you want more specific data according to each of these problems please see this page at EEG Spectrum