Fidgeting may improve attention in children with ADHD

Researchers at the UC Davis MIND Institute found that more intense fidgeting during a computer task designed to measure attention was associated with better task performance. Although the sample was small and the findings will need replication, the authors suggest that some behaviors associated with hyperactivity can be viewed as a form of self-regulation. 

http://well.blogs.nytimes.com/2015/06/24/fidgeting-may-benefit-children-...