NIMH
nimh.nih.gov › health › topics › attention-deficit-hyperactivity-disorder-adhd
Attention-Deficit/Hyperactivity Disorder (ADHD) - National Institute of Mental Health (NIMH)
For many people with ADHD, symptoms cause problems in daily life. Symptoms can make it hard to get things done; interfere with school, work, or other activities; and strain social relationships. Children with ADHD are at increased risk for injuries, social problems, family stress, and poor grades.
neurodevelopmental disorder
Factsheet
Other names Attention-deficit/hyperactivity disorder
Formerly: Attention deficit disorder (ADD), hyperkinetic disorder
Formerly: Attention deficit disorder (ADD), hyperkinetic disorder
Specialty Neuropsychiatry
pediatrics
pediatrics
Other names Attention-deficit/hyperactivity disorder
Formerly: Attention deficit disorder (ADD), hyperkinetic disorder
Formerly: Attention deficit disorder (ADD), hyperkinetic disorder
Specialty Neuropsychiatry
pediatrics
pediatrics
Wikipedia
en.wikipedia.org › wiki › Attention_deficit_hyperactivity_disorder
Attention deficit hyperactivity disorder - Wikipedia
5 days ago - Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by symptoms of inattention, hyperactivity, impulsivity, and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and developmentally inappropriate.
04:01
Living with ADHD: Symptoms, diagnosis and treatment - YouTube
Identifying ADHD - Signs and Symptoms of Attention Deficit/Hyp...
09:51
ADHD in Adults Explained: How to Recognise the Signs and Get Help ...
59:06
Why ADHD Makes You Hate Yourself (And How to Stop!) - YouTube
15:48
ADHD and boredom: Why it can feel like torture - YouTube
Medscape
emedicine.medscape.com › tools & reference › psychiatry
Adult Attention-Deficit/Hyperactivity Disorder (ADHD): Background, Diagnostic Criteria, Epidemiology
3 weeks ago - Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and impulsivity that impair functioning across multiple settings.
American Psychiatric Association
psychiatry.org › patients-families › adhd › what-is-adhd
Psychiatry.org - What is ADHD?
ADHD is considered a chronic and debilitating disorder and is known to impact the individual in many aspects of their life including academic and professional achievements, interpersonal relationships, and daily functioning (Harpin, 2005). ADHD can lead to poor self-esteem and impaired academic and social function in children when not appropriately managed (Harpin et al., 2016).
CHADD
chadd.org › home › for adults › overview
Overview - CHADD
April 6, 2026 - Approximately 15.5 million adults have been diagnosed with attention-deficit/hyperactivity disorder (ADHD). In early adulthood, ADHD may be associated with depression, mood or conduct disorders and substance abuse. Adults with ADHD often cope with difficulties at work and in their personal and family lives related to ADHD symptoms.
YouTube
youtube.com › watch
What Is ADHD? | Ask Cleveland Clinic’s Expert - YouTube
For more information about ADHD, please visit https://cle.clinic/44CHZjmAttention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder, whi...
Published: June 30, 2025
Cleveland Clinic
my.clevelandclinic.org › health › diseases › 4784-attention-deficithyperactivity-disorder-adhd
Attention-Deficit/Hyperactivity Disorder (ADHD)
ADHD stands for attention-deficit/hyperactivity disorder. It’s a neurodevelopmental disorder, which means it affects how your brain develops. Symptoms begin before age 12 and include fidgeting, difficulty paying attention and losing things.
AACAP
aacap.org › aacap › Families_and_Youth › Resource_Centers › ADHD_Resource_Center › Home.aspx
ADHD Resource Center
Attention Deficit/Hyperactivity Disorder (ADHD) is a condition which includes difficulties with attention, increased activity, and difficulties with impulsivity.
Mayo Clinic
mayoclinic.org › diseases-conditions › adhd › symptoms-causes › syc-20350889
Attention-deficit/hyperactivity disorder (ADHD) in children - Symptoms and causes - Mayo Clinic
March 7, 2025 - This condition affects children and may continue into adulthood. It can include having a hard time paying attention, being hyperactive and being impulsive.
ADHD UK
adhduk.co.uk › home › about adhd
What is ADHD - About ADHD
What is ADHD? It is a disorder that is defined through analysis of behaviour. People with ADHD show a persistent pattern of inattention and/or hyperactivity–impulsivity that interferes with day-to-day functioning and/or development.
Published: June 26, 2026
HealthDirect
healthdirect.gov.au › attention-deficit-disorder-add-or-adhd
Attention deficit hyperactivity disorder - ADHD symptoms, causes and diagnosis | healthdirect
May 18, 2026 - Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental (brain development) condition that begins in early childhood.
ADHD UK
adhduk.co.uk
ADHD UK - Homepage - ADHD UK
From there we have videos (by Dr Max Davie – specialist in ADHD, trustee of ADHD UK and person with ADHD), we have information on teacher attitudes to help inform conversations with your school, and for adults a self-screener survey to uncover if you might have ADHD.

