See the difference

Two brains, same moment. Watch what changes.

Flip between a neurotypical brain and an ADHD brain — and see how attention, effort, and reward actually behave. Drag the intensity to feel how it scales from mild to significant.

Simplified, interactive illustrations — not literal brain scans.
Moderate
mildmoderatesignificant
Neurotypical

the levels

ADHD comes in degrees, not on-or-off.

Clinicians describe ADHD as mild, moderate, or severe — based on how much it disrupts everyday life, not on how "much" someone has it. The same person can sit in different places on different days. That's what the intensity slider above is standing in for.

Mild

Symptoms are present, but day-to-day impact is limited and often managed with structure, habits, and support.

Moderate

Symptoms clearly affect work, study, or relationships. Coping strategies help but don't fully close the gap.

Significant

Symptoms substantially disrupt multiple areas of life. More structured support and treatment usually make a real difference.

Severity isn't a measure of effort or character — and it isn't fixed. It describes impact, and impact can change with support, environment, sleep, stress, and stage of life.

This is the lived meaning of those four letters.

Back to what ADHD means →