The burden of mental illness in the United States is among the highest of all diseases, and mental
disorders are among the most common causes of disability. Recent figures suggest that, in 2004,
approximately 1 in 4 adults in the United States had a mental health disorder in the past year and
most commonly anxiety or depression; 1 in 17 had a serious mental illness. Mental health disorders
also affect children and adolescents at an increasingly alarming rate; in 2010, 1 in 5 children in the
United States had a mental health disorder. It is not unusual for either adults or children to have
more than one mental health disorder. Mental health is essential to a person’s well-being, healthy family and interpersonal relationships,
and the ability to live a full and productive life. People, including children and adolescents, with
untreated mental health disorders are at high risk for many unhealthy and unsafe behaviors,
including alcohol or drug abuse, violent or self-destructive behavior, and suicide—the 11th leading
cause of death in the United States for all age groups and the second leading cause of death among
people age 25 to 34. Mental health disorders also have a serious impact on physical health and are associated with the
prevalence, progression, and outcome of some of today’s most pressing chronic diseases, including
diabetes, heart disease, and cancer. Mental health disorders can have harmful and long-lasting
effects—including high psychosocial and economic costs—not only for people living with the
disorder, but also for their families, schools, workplaces, and communities.
Fortunately, a number of mental health disorders can be treated effectively, and prevention of mental
health disorders is a growing area of research and practice. Early diagnosis and treatment can
decrease the disease burden of mental health disorders as well as associated chronic diseases.
Assessing and addressing mental health remains important to ensure that all Americans lead longer,
healthier lives
Mental health disorders are a concern for people of all ages, from early childhood through old age.