The Brain’s ‘Switching System’: Why Moving From One Task to Another Can Be So Hard
A look at what neuroimaging research shows about how the brain coordinates task-switching — and why equivalent performance on switch-cost tests can coexist with substantially different patterns of neural engagement.
Why ADHD Can Look Completely Different in Girls and Women
A look at what the research shows about why ADHD presents differently in many girls and women — from internalizing symptoms and masking to hormonal influences across the lifespan — and what the evidence does and does not establish.
The Brain’s Executive Office: What the Prefrontal Cortex Actually Does All Day
The prefrontal cortex coordinates working memory, inhibitory control, planning, and emotional regulation through a collection of distinct subregions working together. Understanding what this system actually does — and what makes it fail — gives a more precise account of what focus, self-control, and clear thinking depend on.
Why Some People Feel Everything: The Neuroscience of Sensory Sensitivity
The brain does not receive sensory information passively. It actively filters and weights every incoming signal — and the architecture of that filtering system varies measurably from person to person. For roughly one in six people, the circuits responsible for sensory gating assign higher priority to signals that most nervous systems quietly suppress.
The ADHD Brain at Homework Time: Why Everything Can Suddenly Fall Apart
The child who made it through six hours of school without a single incident can fall apart completely at the homework table. Understanding why requires looking at what the school day actually cost — and what it left behind.
The Tiny Brain Structure You Probably Haven’t Heard Of: Meet the Habenula
It is roughly the size of a pea, sits deep in the brain, and helps decide when to stop trying. A 2026 study using 7-tesla imaging asked what it has to do with attention.
ADHD Isn’t a Static Brain: What New Long-Term MRI Research Is Revealing
A 2026 review screened 3,385 studies to ask how the brains of children with ADHD develop over time. Its findings do not point in one direction, and that is the interesting part.
The Brain’s Sensory Filters: Why Some People Feel Everything
Your brain discards most of what your senses detect. When that filtering works differently, ordinary environments become genuinely exhausting — and the mechanism is the same across several conditions.
The Brain’s Attention Network: More Than Just ADHD
Attention is not one thing. It is several networks doing different jobs — and stress, sleep loss and anxiety impair them in everyone, not only in people with ADHD.
The ADHD Brain During Unstructured Time
Unstructured time is supposed to feel relaxing — but for the ADHD brain, it often triggers restlessness, frustration, or hyperfocus spirals. Here’s why and what actually helps.