Depression is the leading cause of ill health and disability worldwide
"Depression is the leading cause of ill health and disability worldwide. According to the latest estimates from WHO, more than 300 million people are now living with depression, an increase of more than 18% between 2005 and 2015. Lack of support for people with mental disorders, coupled with a fear of stigma, prevent many from accessing the treatment they need to live healthy, productive lives."
Source: "'Depression: let’s talk' says WHO, as depression tops list of causes of ill health," World Health Organization, March 30, 2017, http://www.who.int/mediacentre/news/releases/2017/world-health-day/en/.