“ADHD in preschool children is a valid and reliable condition,” Ann Childress, MD, told attendees of the American Professional Society of ADHD and Related Disorders 2022 Conference. Research data support this notion, explained Childress, president of the Center for Psychiatry and Behavioral Medicine, Inc, and adjunct associate professor at the University of Nevada Las Vegas School of Medicine and Touro University Nevada College of Osteopathic Medicine.