Full Circle Counseling Services, LLC

Mental illnesses are common in the United States. Nearly one in five U.S. adults lives with a mental illness (44.7 million in 2016). Mental illnesses include many different conditions that vary in degree of severity, ranging from mild to moderate to severe. Two broad categories can be used to describe these conditions: Any Mental Illness (AMI) and Serious Mental Illness (SMI).

Additional information on mental illnesses can be found on the NIMH Health Topics Pages.

Any Mental Illness

  • Any mental illness (AMI) is defined as a mental, behavioral, or emotional disorder. AMI can vary in impact, ranging from no impairment to mild, moderate, and even severe impairment (e.g., individuals with serious mental illness as defined below).

Serious Mental Illness

  • Serious mental illness (SMI) is defined as a mental, behavioral, or emotional disorder resulting in serious functional impairment, which substantially interferes with or limits one or more major life activities. The burden of mental illnesses is particularly concentrated among those who experience disability due to SMI

Prevalence of Any Mental Illness

  • In 2016, there were an estimated 44.7 million adults aged 18 or older in the United States with AMI. This number represented 18.3% of all U.S. adults.
  • The prevalence of AMI was higher among women (21.7%) than men (14.5%).
  • Young adults aged 18-25 years had the highest prevalence of AMI (22.1%) compared to adults aged 26-49 years (21.1%) and aged 50 and older (14.5%).