ADHD (Attention-Deficit/Hyperactivity Disorder) affects attention, focus, impulse control, and energy levels. It is a brain-based condition, not a lack of effort, intelligence, or motivation.
ADHD can look different in children and adults, and many people arenât diagnosed until later in life.
ADHD involves differences in how the brain manages attention, organization, and self-control.
It may show up as:
Difficulty sustaining focus
Trouble starting or finishing tasks
Acting or speaking impulsively
Feeling mentally restless
Some people have mainly attention-related symptoms, others have more hyperactivity or impulsivity, and many have a combination.
Attention-related symptoms may include:
Easily distracted
Difficulty following through on tasks
Forgetfulness or misplacing things
Trouble organizing time or priorities
Hyperactivity or impulsivity may include:
Feeling restless or fidgety
Talking or interrupting frequently
Acting quickly without thinking
Difficulty waiting or slowing down
Not everyone experiences ADHD the same way.
ADHD is linked to differences in brain networks that manage attention, planning, and impulse control.
This may involve:
Brain chemicals related to focus and motivation
Reduced regulation in attention and executive-function networks
Differences in how the brain processes rewards
These differences affect how the brain filters information and manages tasks.
ADHD is evaluated through:
Detailed history of symptoms over time
Questionnaires or rating scales
Looking at how symptoms affect daily life
Ruling out other causes when needed
There is no single blood test or scan for ADHD. Diagnosis is based on patterns and impact.
Treatment is individualized and may include:
Behavioral strategies or coaching
Therapy or skills-based support
Medications in some cases
Adjustments to routines, environment, or workload
Many people use a combination of approaches.
Helpful supports may include:
Clear routines and reminders
Breaking tasks into smaller steps
External structure (lists, timers, calendars)
Addressing sleep, stress, and mental health
Finding what works often takes some trial and adjustment.
Seek immediate help if ADHD symptoms are combined with:
Severe mood changes
Thoughts of harming yourself
Feeling unsafe or overwhelmed
In the U.S., call or text 988 for the Suicide & Crisis Lifeline.
If you are in immediate danger, call 911.
ADHD is manageable, and support can make daily life easier.
You may also want to explore:
Understanding how your brain works can help you build strategies that fit you.