Interesting

"The most common sense, natural solution to inattentive behavior in school children, however, may be the basic idea of giving children more time to free play and to engage their bodies in physical activity. It's such a simple notion in such unusual times that it actually sounds revolutionary, and several schools in Texas are being hailed for trying a new program which solves behavioral problems by doing nothing more than allowing children to play outside more often during the school day."

Read, listen or watch here: Texas School Triples Recess Time, Solving Attention Deficit Disorder

See also pesticides causing ADHD and Why French kids don't have ADHD