Mental Illness
An estimated 26.2 percent of Americans 18 and older
suffer from a diagnosable mental disorder in a given year

Source: National Institute of Mental Health

Mental disorders now account for over 15 percent of the burden of disease in established market economies worldwide. This is more than the disease burden caused by all cancers.

Take a look at recent findings for some of the most common mental illnesses:

source/arttoday.com
  Related Links
Almanac: Health

National Institute of Mental Health

American Psychological Association