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Common Mental Health Disorders in Adolescence

Common mental health disorders in adolescence include those related to anxiety, depression, attention deficit-hyperactivity, and eating.1,2

Anxiety disorders 

  • Characterized by feelings of excessive uneasiness, worry, and fear
  • Occur in approximately 32 percent of 13- to 18-year-olds3
  • Examples include generalized anxiety disorder, post-traumatic stress disorder, social anxiety disorder, obsessive-compulsive disorder, and phobias


  • Depressed mood that affects thoughts, feelings, and daily activities, including eating, sleeping, and working
  • Occurs in approximately 13 percent of 12- to 17-year-olds4
  • Examples include depressive disorder, postpartum depression, and seasonal affective disorder

Attention deficit-hyperactivity disorder (ADHD)

  • Characterized by continued inattention and/or hyperactivity-impulsivity that interferes with daily functioning or development
  • Occurs in approximately nine percent of 13- to 18-year-olds5

Eating disorders 

  • Characterized by extreme and abnormal eating behaviors, such as insufficient or excessive eating 
  • Occur in almost three percent of 13- to 18-year-olds6
  • Examples include anorexia nervosa, bulimia, and binge eating disorder

Co-occurring Disorders

When a person has a mental health and substance use disorder at the same time, they have co-occurring disorders. Compared to the general population, people with mental health disorders are more likely to experience a substance use disorder, repeatedly use alcohol and/or drugs to the point of impairment, and neglect major responsibilities at home, work, or school.7 Youth who have experienced a major depressive episode are twice as likely to start using alcohol or an illicit drug. A 2010 study found that more than 29 percent of youth who started using alcohol within the past year did so after a major depressive episode, compared to 14.5 percent of youth who had not experienced a major depressive episode. The same pattern also occurred with the use of illicit drugs.8

Substance use shares many characteristics with mental illness. Prevention efforts and early treatment are beneficial for people who are at risk for both substance use and mental health disorders.9 A recent U.S. Surgeon General’s report highlights the scope of substance use (including alcohol) and its negative health impacts for individuals and the nation. Because mental health and substance use disorders are complicated and involve biological, psychological, and social elements, the Substance Abuse and Mental Health Services Administration (SAMHSA) supports an integrated treatment approach to co-occurring disorders. This approach allows practitioners to comprehensively address symptoms and underlying causes, which often lowers the cost of treatment and leads to better outcomes.10

Substance use is not the only disorder that occurs at the same time as mental health disorders. Different mental health disorders can occur together (like anxiety and depression) or mental health disorders can overlap with physical health disorders (like depression and diabetes).11 Symptoms of mental health disorders can also be similar to other conditions. For example, autism spectrum disorder (ASD) is the name for a group of developmental disorders often characterized by impairments in the ability to communicate and interact with others. ASD includes a wide range of symptoms, skills, and levels of disability. These disorders occur in about 1.5 percent of children and often co-occur with disorders such as depression, anxiety, and sensory integration disorder.12

Current Research

Much of the current research on mental health is focused on addressing three areas: the role of trauma and toxic stress in the development of mental health disorders; factors that promote resilience in the face of challenges; and interventions that include therapeutic or preventive approaches, such as mindfulness meditation.13

The federally-funded Adolescent Brain Cognitive Development (ABCD) study was launched in 2016, and will follow the biological and behavioral development of more than 10,000 children from ages 9-10 through adolescence and into early adulthood. Researchers will use advanced brain imaging, interviews, and behavioral testing to examine how childhood experiences affect a child’s changing biology and vice versa. The interaction between childhood activities and biology could affect brain development and—ultimately—social, behavioral, academic, health, and other outcomes.14

Other researchers are interested in understanding the role of medication treating mental health disorders. Most children who receive outpatient care for mental health see their primary care provider, rather than a specialist, such as a psychiatrist. Primary care providers are more likely than specialists to prescribe medication.15 Treating a mental health disorder with medication sometimes requires going through several trials before settling on the most effective medication or combination of medications for the individual. Identifying the best treatment can be stressful and expensive for families. Because of the importance of identifying the best treatments early, the NIMH Mental Health Services Research Committee is funding evaluations of the effectiveness of mental health services and treatments, the use of medication to treat mental health disorders, service needs for specific populations or for those with co-occurring disorders, and innovative service delivery models.16


1 U.S. Department of Health and Human Services, National Institute of Mental Health. (2017). Mental illness. Retrieved from https://www.nimh.nih.gov/health/statistics/mental-illness.shtml
2 Interagency Working Group on Youth Programs. (n.d.). Prevalence. Retrieved from http://youth.gov/youth-topics/youth-mental-health/prevalance-mental-health-disorders-among-youth
3 U.S. Department of Health and Human Services, National Institute of Mental Health. (2017). Any anxiety disorder. Retrieved from https://www.nimh.nih.gov/health/statistics/any-anxiety-disorder.shtml
4 U.S. Department of Health and Human Services, Substance Abuse and Mental Health Administration. (2017). Key substance use and mental health indicators in the United States: Results from the 2016 National Survey on Drug Use and Health. Retrieved from https://www.samhsa.gov/data/sites/default/files/NSDUH-FFR1-2016/NSDUH-FFR1-2016.pdf
5 U.S. Department of Health and Human Services, National Institute of Mental Health (2017). Attention deficit hyperactivity disorder (ADHD). Retrieved from https://www.nimh.nih.gov/health/statistics/attention-deficit-hyperactivity-disorder-adhd.shtml
6 U.S. Department of Health and Human Services, National Institute of Mental Health. (2017). Eating disorders. Retrieved from https://www.nimh.nih.gov/health/statistics/eating-disorders.shtml
7 U.S. Department of Health and Human Services, Substance Abuse and Mental Health Services Administration. (2017). Mental and substance use disorders. Retrieved from https://www.samhsa.gov/disorders
8 Interagency Working Group on Youth Programs. (n.d.). Co-occurring disorders. Retrieved from http://youth.gov/youth-topics/youth-mental-health/co-occurring
9 U.S. Department of Health and Human Services, Office of the Surgeon General. (2016). Facing addiction in America: The Surgeon General's report on alcohol, drugs, and health.
10 U.S. Department of Health and Human Services, Substance Abuse and Mental Health Services Administration. (n.d.). Co-occurring disorders. Retrieved from https://www.samhsa.gov/disorders/co-occurring
11 Druss, B. G., & Walker, E. (2011). Mental disorders and medical comorbidity. Retrieved from http://www.integration.samhsa.gov/workforce/mental_disorders_and_medical_comorbidity.pdf
12 U.S. Department of Health and Human Services, National Institute of Mental Health. (2016). Autism spectrum disorder. Retrieved from https://www.nimh.nih.gov/health/topics/autism-spectrum-disorders-asd/index.shtml
13 Sibinga, E. M., Webb, L., Ghazarian, S. R., & Ellen, J. M. (2016). School-based mindfulness instruction: an RCT. Pediatrics137(1). Retrieved from http://pediatrics.aappublications.org/content/early/2015/12/16/peds.2015-2532
14 U.S. Department of Health and Human Services, National Institute of Mental Health. (2016). Recruitment begins for landmark study of adolescent brain development. Retrieved from https://www.nimh.nih.gov/news/science-news/2016/recruitment-begins-for-landmark-study-of-adolescent-brain-development.shtml
15 Anderson, E., Chen, M. I., Perrin, J. M., & Van Cleave, J. (2015). Outpatient visits and medication prescribing for U.S. children with mental health conditions. Pediatrics. Retrieved from http://pediatrics.aappublications.org/content/pediatrics/early/2015/10/06/peds.2015-0807.full.pdf
16 U.S. Department of Health and Human Services, National Institute of Mental Health. (n.d.). Mental Health Services Committee (SERV). Retrieved from https://www.nimh.nih.gov/funding/grant-writing-and-application-process/mental-health-services-research-committee-serv.shtml
Content created by Office of Adolescent Health
Content last reviewed on May 1, 2019