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Dopamine, norepinephrine and cortisol in ADHD: What the research shows about motivation, focus and stress
The popular story about ADHD says low dopamine and cortisol-fuelled deadlines. The actual research says something more specific. A psychologist explains what the imaging and endocrine literature really shows.

Matthew Hallam
Oct 28, 20245 min read


ADHD and sleep in adults: What the evidence shows about circadian rhythm, insomnia and why it matters
For most adults with ADHD, sleep difficulty is not a side-issue to be solved by better habits. The peer-reviewed evidence increasingly frames it as a core feature of the condition, often driven by a delayed circadian rhythm. This piece walks through what the research actually shows and why that shift in framing matters.

Matthew Hallam
Oct 13, 20245 min read


Adult ADHD burnout: What the evidence shows about executive function strain, emotion regulation, and masking
ADHD burnout is not a character flaw or a lack of discipline. The peer-reviewed evidence increasingly frames it as the predictable outcome of executive function strain, emotion regulation load, and the hidden cognitive work of masking, accumulated over time. This piece walks through the research and what genuinely helps.

Matthew Hallam
Oct 6, 20244 min read


Reflective practice and wellbeing: What the research actually shows about curiosity, rumination and adaptive self-reflection
Not all self-reflection helps. The research distinguishes adaptive reflection from rumination, and the difference is largely about how you reflect, not how much.

Matthew Hallam
Sep 8, 20245 min read
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