
What is ADHD?
05/24/22 • 31 min
You’ve heard our guests’ stories about their ADHD symptoms...but what exactly is ADHD? A bunch of listeners have asked for an ADHD explainer. So this episode, we’re doing something different. The best explanation of ADHD we’ve ever heard comes from clinical psychologist and ADHD expert Dr. Thomas Brown. We’re posting the audio of the YouTube video he did with Understood here, along with some commentary from host Laura Key.
Dr. Brown defines ADHD, shares relatable and detailed examples of ADHD symptoms, and explains the ADHD brain. We hope you enjoy — and that it’s helpful.
To find a transcript for this episode and more resources, visit the episode page at Understood.
We love hearing from our listeners. Email us at [email protected].
Related resources
Understood.org is a nonprofit organization dedicated to empowering people with learning and thinking differences, like ADHD and dyslexia. If you want to help us continue this work, donate at understood.org/give
You’ve heard our guests’ stories about their ADHD symptoms...but what exactly is ADHD? A bunch of listeners have asked for an ADHD explainer. So this episode, we’re doing something different. The best explanation of ADHD we’ve ever heard comes from clinical psychologist and ADHD expert Dr. Thomas Brown. We’re posting the audio of the YouTube video he did with Understood here, along with some commentary from host Laura Key.
Dr. Brown defines ADHD, shares relatable and detailed examples of ADHD symptoms, and explains the ADHD brain. We hope you enjoy — and that it’s helpful.
To find a transcript for this episode and more resources, visit the episode page at Understood.
We love hearing from our listeners. Email us at [email protected].
Related resources
Understood.org is a nonprofit organization dedicated to empowering people with learning and thinking differences, like ADHD and dyslexia. If you want to help us continue this work, donate at understood.org/give
Previous Episode

Her intense, restless son harnessed ADHD by climbing mountains (Michelle’s story)
Marc-André Leclerc was a skilled rock climber and alpinist who died at age 25 in the mountains of Alaska. He’s the subject of a Netflix documentary, The Alpinist. Marc-André was diagnosed with ADHD and written expression disorder as a child. Through climbing, he found an outlet for his intensity and hyperfocus — and his achievements were nothing short of extraordinary.
Marc-André's mother, Michelle Kuipers, homeschooled him and helped him learn to channel his ADHD. Michelle joins the show to talk about her son and her approach to parenting a child with ADHD. She shares how Marc-André would be more panicked about renewing a passport than about climbing mountains alone and without ropes.
Listen as Michelle describes Marc-André’s loving and generous spirit and how she wants her son to be remembered.
To find a transcript for this episode and more resources, visit the episode page at Understood.
We love hearing from our listeners. Email us at [email protected].
Related resources
- 8 things I wish people knew about parenting a child with ADHD
- Understanding hyperactivity
- Video: Race car driver Dusty Davis talks about his ADHD
Understood.org is a nonprofit organization dedicated to empowering people with learning and thinking differences, like ADHD and dyslexia. If you want to help us continue this work, donate at understood.org/give
Next Episode

ADHD and sleep problems (from the “In It” podcast)
Bonus episode! Learn about ADHD and sleep from our friends at Understood’s In It podcast. Hosts Amanda Morin and Gretchen Vierstra first hear from a mom whose son has ADHD, autism, and sleep challenges. Then they speak with clinical psychologist Dr. Roberto Olivardia about the connection between ADHD and sleep — including why people with ADHD may have sleep problems.
Get a transcript of this show and check out more “In It” episodes at u.org/init.
We love hearing from our listeners. Email us at [email protected].
Related resources
- How ADHD affects sleep — and what you can do to help
- Download: Bedtime checklists for kids
- Follow Belinda on Instagram or Twitter to see more about her advocacy for neurodivergent people.
Understood.org is a nonprofit organization dedicated to empowering people with learning and thinking differences, like ADHD and dyslexia. If you want to help us continue this work, donate at understood.org/give
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