According to the National Alliance on Mental Illness (NAMI), Approximately 1 in 5 adults in the U.S.—43.8 million, or 18.5%—experiences mental illness in a given year.1 Approximately 1 in 25 adults in the U.S.—9.8 million, or 4.0%—experiences a serious mental illness in a given year that substantially interferes with or limits one or more major life activities.2 Approximately 1 in 5 youth aged 13–18 (21.4%) experiences a severe mental disorder at some point during their life. For children aged 8–15, the estimate is 13%.3