University of Southampton Mar 26 2026 Families are feeling stressed, powerless and 'forever in limbo' as they wait months, or sometimes years, for Attention-Deficit Hyperactivity Disorder (ADHD) assessments, according to a new study.  Research led by the University of Southampton and King's College London examined the experiences of parents navigating waiting lists for ADHD diagnosis with Child and Adolescent Mental Health Services (CAMHS) in the UK.  NHS data for the end of September 2025