It’s easy to appreciate the seasonality of winter blues, but web searches show that other disorders may ebb and flow with the weather as well. Google searches are becoming an intriguing source of health-related information, exposing everything from the first signs of an infectious disease outbreak to previously undocumented side effects of medications. So researchers led by John Ayers of the University of Southern California decided to comb through queries about mental illnesses to look for potentially helpful patterns related to these conditions. Given well known connections between depression and winter weather, they investigated possible connections between mental illnesses and seasons. Using all of Google’s search data from 2006 to 2010, they studied searches for terms like “schizophrenia” “attention deficit/hyperactivity disorder (ADHD),” “bulimia” and “bipolar” in both the United States and Australia.  Since winter and summer are reversed in the two countries finding opposing patterns in the two countries’ data would strongly suggest that season, rather than other things that might vary with time of year, was important in some way in the prevalence of the disorders. MORE: How Treating Wrinkles May Also Relieve Depression “All mental health queries followed seasonal patterns with winter peaks and summer troughs,” the researchers write in their study, published in the American Journal of Preventive Medicine. They found that mental health queries in general were 14% higher in the winter in the U.S. and 11% higher in the Australian winter. The seasonal timing of queries regarding each disorder was also similar in the two countries. In both countries, for example, searches about eating disorders (including anorexia and bulimia) and schizophrenia surged during winter months; those in the U.S. were 37% more likely and Australians were 42% more likely to seek information about these disorders during colder weather than during the summer. And compared to summer searches, schizophrenia queries were 37% more common in the American winter and 36% more frequent during the Australian winter. ADHD queries were also highly seasonal, with 31% more winter searches in the U.S. and 28% more in Australia compared to summer … Continue reading Google Searches Reveal Seasonal Trends in Mental Illnesses