Late Diagnosis of Autism & ADHD: What Parents Should Know About Neurodivergent Teens

Late Diagnosis of Autism & ADHD: What Parents Should Know About Neurodivergent Teens

From Where Parents Talk: Evidence-based Expert Advice on Raising Kids Today by Lianne Castelino

May 30, 2026 · 33 min · Season 4 · Episode 271

About this episode

This episode discusses the impact of late diagnosis of autism and ADHD on individuals and their families, featuring insights from Noelle Sinclair.

What happens when autism and ADHD go undiagnosed until adulthood? In this episode of the Where Parents Talk podcast, host Lianne Castelino speaks with neurodiversity consultant and entrepreneur Noelle Sinclair about her late diagnosis—and how it transformed her life as a parent, professional, and individual. Sinclair shares eye-opening insights into masking in girls, the hidden signs of neurodivergence in teens, and why many children are misunderstood or overlooked. She also offers practical, compassionate advice for parents raising neurodivergent tweens, teens, and young adults—especially those who may be struggling silently. From building independence and self-advocacy skills to navigating labels, stigma, and mental health challenges, this episode is packed with expert guidance and lived experience. If you're parenting a child with autism, ADHD, or learning differences—or suspect you might be—this conversation will help you better understand, support, and empower your child. Takeaways: Understanding neurodiversity is essential for fostering independence in children, as it empowers them to embrace their unique strengths while navigating societal challenges. Open communication…

People in this episode

Host: Lianne Castelino

Guest: Noelle Sinclair

Topics covered

  • autism
  • ADHD
  • neurodiversity
  • parenting
  • mental health
  • self-advocacy

Keywords

  • neurodivergent teens
  • masking in girls
  • hidden signs of neurodivergence
  • parenting neurodivergent children
  • building independence
  • mental health challenges

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