Background on depression: http://www.mayoclinic.org/diseases-conditions/depression/basics/definition/con-20032977 http://www.mayoclinic.org/diseases-conditions

Background on depression: http://www.mayoclinic.org/diseases-conditions/depression/basics/definition/con-20032977 http://www.mayoclinic.org/diseases-conditions/depression/bas... https://en.wikipedia.org/wiki/Major_depressive_disorder https://en.wikipedia.org/wiki/Major_depressive_disorder Please don't guess at remembering something you read on buzzfeed.