Scientists Track Mental Health Through Google Searches

... eating disorder searches were down by 37 percent in the United States, while Attention-Deficit Hyperactivity Disorder, ADHD, declined by 28 percent. Bipolar and Obsessive-Compulsive Disorder, or OCD, searches were both down 18 percent, as well. ...

http://www.medicaldaily.com/articles/14586/20130409/mental-health-seasonal-depression-illness-google-tracking.htm