Autism – Mild Hyperbaric Therapy increases the oxygen tissue concentration which increases cerebral blood flow to an area thus enabling the body to restore brain tissue metabolism of oxygen and nutrients, helping restoration of any areas which are suffering from hypoxia. New blood and oxygen begin to stimulate an area, especially one that has viable, recoverable brain cells. Many patients have improvement in concentration, improvement in behavior, improve in brain function, reduction in aggressive behavior, improve sleep, fewer tantrums, much happier, interested in contact with others, function better in public, improve speech and language, strong affection signs.