Child Mind Institute President Dr. Harold Koplewicz was interviewed by NBC News Correspondent Cynthia McFadden for an “NBC Nightly News” story about the prevalence of mental health disorders among American children, the first in an ongoing series of reports on this topic. Alex Crotty, a Child Mind Institute patient, and her family bravely discussed her challenges and how she fought successfully to overcome them. Dr. Koplewicz spoke with McFadden about the biological factors involved with mental health disorders.