ADHD in adults
A neurodevelopmental condition of persistent inattention, impulsivity and restlessness that begins in childhood and continues into adulthood in many people. In adults hyperactivity often becomes inner restlessness, and the main impairment is in self-regulation: starting, sustaining, timing and finishing.
What drives it
Weak, interest-dependent regulation of attention and effort: the brain mobilises easily for novelty, urgency and interest and struggles with dull, delayed-reward tasks. Many coping patterns (last-minute pressure, overcommitment, people-pleasing) grow up around the shame of repeated failures.
How it shows
Work
Brilliant in a crisis, poor at routine admin. Late reports, missed details, lost documents, over-ambitious estimates, starting projects and not finishing them. Interrupts and finishes others' sentences. Can hyperfocus for hours on something interesting and forget to eat. Often found in roles with variety and pace (founders, sales, emergency medicine).
Relationships
Forgets dates and tasks, appears not to listen, leaves things half-done around the house, impulsive spending or speech. Partners often end up in a parent role and feel unseen; the ADHD partner feels nagged and ashamed. Strong emotional reactions that pass quickly.
Self
You know exactly what to do and cannot make yourself start until a deadline is breathing down your neck. Time feels like 'now' or 'not now'. You lose things daily. You have a lifelong sense of underachieving relative to your intelligence.
What tells it apart
Generalised anxiety: Anxiety disrupts attention through worry and lifts when the worry does; ADHD distractibility is present when calm and content, started in childhood, and the person often reports boredom rather than fear.
Major depression: Depression brings a dated onset, loss of interest and slowed thinking; in ADHD interest is intact (often excessive), the problem is follow-through, and the pattern goes back to school reports.
Bipolar disorder and hypomania: ADHD is constant and does not reduce the need for sleep; hypomania is episodic, with weeks of reduced sleep without tiredness, grandiosity and a clear change from the person's usual self.
A test
Look for a lifelong pattern visible in childhood (school reports, family accounts) across settings, not only under current stress; if present and impairing, suggest a formal assessment, which should rule out sleep disorders, anxiety, depression and substance use.
Questions to carry
- Looking back to school reports and childhood, where did the same trouble with starting and finishing show up?
- What coping habits, like last-minute rushes or saying yes to everything, grew up around my shame about past slips?
How strong the research is
strong
Where it comes from
George Still, 1902; attention deficit disorder in DSM-III, 1980; adult ADHD described by Paul Wender, 1970s; executive function model by Russell Barkley, 1990s